148712257 has 4 divisors (see below), whose sum is σ = 148766656. Its totient is φ = 148657860.

The previous prime is 148712237. The next prime is 148712293. The reversal of 148712257 is 752217841.

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 a cyclic number.

It is not a de Polignac number, because 148712257 - 2⁷ = 148712129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (148712237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22869 + ... + 28642.

It is an arithmetic number, because the mean of its divisors is an integer number (37191664).

Almost surely, 2^148712257 is an apocalyptic number.

It is an amenable number.

148712257 is a deficient number, since it is larger than the sum of its proper divisors (54399).

148712257 is an equidigital number, since it uses as much as digits as its factorization.

148712257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54398.

The product of its digits is 31360, while the sum is 37.

The square root of 148712257 is about 12194.7635073420. The cubic root of 148712257 is about 529.8044336015.

The spelling of 148712257 in words is "one hundred forty-eight million, seven hundred twelve thousand, two hundred fifty-seven".