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BaseRepresentation
bin100011000011000000101
32011100100010
410120120011
5243222141
640340433
712522111
oct4303005
92140303
101148421
1171490a
12474719
13312951
1421c741
1517a416
hex118605

1148421 has 4 divisors (see below), whose sum is σ = 1531232. Its totient is φ = 765612.

The previous prime is 1148387. The next prime is 1148437. The reversal of 1148421 is 1248411.

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 not a de Polignac number, because 1148421 - 27 = 1148293 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1148621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 191401 + ... + 191406.

It is an arithmetic number, because the mean of its divisors is an integer number (382808).

21148421 is an apocalyptic number.

It is an amenable number.

1148421 is a deficient number, since it is larger than the sum of its proper divisors (382811).

1148421 is an equidigital number, since it uses as much as digits as its factorization.

1148421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382810.

The product of its digits is 256, while the sum is 21.

The square root of 1148421 is about 1071.6440640437. The cubic root of 1148421 is about 104.7209825773.

The spelling of 1148421 in words is "one million, one hundred forty-eight thousand, four hundred twenty-one".

Divisors: 1 3 382807 1148421