157028 has 12 divisors (see below), whose sum is σ = 282492. Its totient is φ = 76320.

The previous prime is 157019. The next prime is 157037. The reversal of 157028 is 820751.

It is an interprime number because it is at equal distance from previous prime (157019) and next prime (157037).

It can be written as a sum of positive squares in 2 ways, for example, as 123904 + 33124 = 352^2 + 182^2 .

It is a junction number, because it is equal to n+sod(n) for n = 156994 and 157012.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 157028.

It is an unprimeable number.

157028 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383 + ... + 678.

It is an arithmetic number, because the mean of its divisors is an integer number (23541).

2¹⁵⁷⁰²⁸ is an apocalyptic number.

It is an amenable number.

157028 is a deficient number, since it is larger than the sum of its proper divisors (125464).

157028 is a wasteful number, since it uses less digits than its factorization.

157028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 23.

The square root of 157028 is about 396.2675863605. The cubic root of 157028 is about 53.9501139653.

Adding to 157028 its reverse (820751), we get a palindrome (977779).

The spelling of 157028 in words is "one hundred fifty-seven thousand, twenty-eight".