157402128 has 160 divisors (see below), whose sum is σ = 462192640. Its totient is φ = 45826560.

The previous prime is 157402123. The next prime is 157402129. The reversal of 157402128 is 821204751.

It is a junction number, because it is equal to n+sod(n) for n = 157402095 and 157402104.

It is not an unprimeable number, because it can be changed into a prime (157402121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1528125 + ... + 1528227.

It is an arithmetic number, because the mean of its divisors is an integer number (2888704).

Almost surely, 2^157402128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157402128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (231096320).

157402128 is an abundant number, since it is smaller than the sum of its proper divisors (304790512).

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

157402128 is a wasteful number, since it uses less digits than its factorization.

157402128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 231 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 157402128 is about 12546.0004782401. Note that the first 3 decimals coincide. The cubic root of 157402128 is about 539.9292637111.

Adding to 157402128 its reverse (821204751), we get a palindrome (978606879).

The spelling of 157402128 in words is "one hundred fifty-seven million, four hundred two thousand, one hundred twenty-eight".