157751628 has 12 divisors (see below), whose sum is σ = 368087160. Its totient is φ = 52583872.

The previous prime is 157751617. The next prime is 157751651. The reversal of 157751628 is 826157751.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×157751628² = 49771152273300768, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 157751628.

It is an unprimeable number.

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, 6572973 + ... + 6572996.

It is an arithmetic number, because the mean of its divisors is an integer number (30673930).

Almost surely, 2^157751628 is an apocalyptic number.

It is an amenable number.

157751628 is an abundant number, since it is smaller than the sum of its proper divisors (210335532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157751628 is a wasteful number, since it uses less digits than its factorization.

157751628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13145976 (or 13145974 counting only the distinct ones).

The product of its digits is 117600, while the sum is 42.

The square root of 157751628 is about 12559.9214965700. The cubic root of 157751628 is about 540.3285928759.

The spelling of 157751628 in words is "one hundred fifty-seven million, seven hundred fifty-one thousand, six hundred twenty-eight".