157152540 has 24 divisors (see below), whose sum is σ = 440027280. Its totient is φ = 41907328.

The previous prime is 157152529. The next prime is 157152571. The reversal of 157152540 is 45251751.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 157152498 and 157152507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1309545 + ... + 1309664.

It is an arithmetic number, because the mean of its divisors is an integer number (18334470).

Almost surely, 2^157152540 is an apocalyptic number.

157152540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157152540 is an abundant number, since it is smaller than the sum of its proper divisors (282874740).

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

157152540 is a wasteful number, since it uses less digits than its factorization.

157152540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619221 (or 2619219 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 30.

The square root of 157152540 is about 12536.0496170046. The cubic root of 157152540 is about 539.6437293331.

The spelling of 157152540 in words is "one hundred fifty-seven million, one hundred fifty-two thousand, five hundred forty".