124728957 has 16 divisors (see below), whose sum is σ = 187815360. Its totient is φ = 81788400.

The previous prime is 124728941. The next prime is 124728973. The reversal of 124728957 is 759827421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (124728941) and next prime (124728973).

It is not a de Polignac number, because 124728957 - 2⁴ = 124728941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (124728917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36219 + ... + 39512.

It is an arithmetic number, because the mean of its divisors is an integer number (11738460).

Almost surely, 2^124728957 is an apocalyptic number.

It is an amenable number.

124728957 is a deficient number, since it is larger than the sum of its proper divisors (63086403).

124728957 is an equidigital number, since it uses as much as digits as its factorization.

124728957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75801 (or 75795 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 124728957 is about 11168.2118980614. The cubic root of 124728957 is about 499.6383478118.

The spelling of 124728957 in words is "one hundred twenty-four million, seven hundred twenty-eight thousand, nine hundred fifty-seven".