157140028 has 12 divisors (see below), whose sum is σ = 275445072. Its totient is φ = 78441440.

The previous prime is 157139989. The next prime is 157140031. The reversal of 157140028 is 820041751.

157140028 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 157139978 and 157140005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29368 + ... + 34303.

It is an arithmetic number, because the mean of its divisors is an integer number (22953756).

Almost surely, 2^157140028 is an apocalyptic number.

It is an amenable number.

157140028 is a deficient number, since it is larger than the sum of its proper divisors (118305044).

157140028 is a wasteful number, since it uses less digits than its factorization.

157140028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64292 (or 64290 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 28.

The square root of 157140028 is about 12535.5505662895. The cubic root of 157140028 is about 539.6294073638.

Adding to 157140028 its reverse (820041751), we get a palindrome (977181779).

It can be divided in two parts, 157 and 140028, that added together give a triangular number (140185 = T₅₂₉).

The spelling of 157140028 in words is "one hundred fifty-seven million, one hundred forty thousand, twenty-eight".