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148225461 = 349408487
BaseRepresentation
bin10001101010110…
…11110110110101
3101022220122002220
420311123312311
5300421203321
622412552553
73446616126
oct1065336665
9338818086
10148225461
117673aa8a
1241782759
132492a297
141598604d
15d02d9c6
hex8d5bdb5

148225461 has 4 divisors (see below), whose sum is σ = 197633952. Its totient is φ = 98816972.

The previous prime is 148225459. The next prime is 148225463. The reversal of 148225461 is 164522841.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (148225459) and next prime (148225463).

It is a cyclic number.

It is not a de Polignac number, because 148225461 - 21 = 148225459 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148225463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24704241 + ... + 24704246.

It is an arithmetic number, because the mean of its divisors is an integer number (49408488).

Almost surely, 2148225461 is an apocalyptic number.

It is an amenable number.

148225461 is a deficient number, since it is larger than the sum of its proper divisors (49408491).

148225461 is an equidigital number, since it uses as much as digits as its factorization.

148225461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49408490.

The product of its digits is 15360, while the sum is 33.

The square root of 148225461 is about 12174.7879242310. The cubic root of 148225461 is about 529.2257128592.

The spelling of 148225461 in words is "one hundred forty-eight million, two hundred twenty-five thousand, four hundred sixty-one".

Divisors: 1 3 49408487 148225461