157537940 has 36 divisors (see below), whose sum is σ = 384845076. Its totient is φ = 54012672.

The previous prime is 157537909. The next prime is 157537969. The reversal of 157537940 is 49735751.

157537940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 34904464 + 122633476 = 5908^2 + 11074^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79397 + ... + 81356.

It is an arithmetic number, because the mean of its divisors is an integer number (10690141).

Almost surely, 2^157537940 is an apocalyptic number.

157537940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157537940 is an abundant number, since it is smaller than the sum of its proper divisors (227307136).

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

157537940 is a wasteful number, since it uses less digits than its factorization.

157537940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160776 (or 160767 counting only the distinct ones).

The product of its (nonzero) digits is 132300, while the sum is 41.

The square root of 157537940 is about 12551.4118727735. The cubic root of 157537940 is about 540.0845089503.

The spelling of 157537940 in words is "one hundred fifty-seven million, five hundred thirty-seven thousand, nine hundred forty".