157161500 has 48 divisors (see below), whose sum is σ = 344469216. Its totient is φ = 62640000.

The previous prime is 157161497. The next prime is 157161523. The reversal of 157161500 is 5161751.

It is a self number, because there is not a number n which added to its sum of digits gives 157161500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261200 + ... + 261800.

It is an arithmetic number, because the mean of its divisors is an integer number (7176442).

Almost surely, 2^157161500 is an apocalyptic number.

157161500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 157161500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172234608).

157161500 is an abundant number, since it is smaller than the sum of its proper divisors (187307716).

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

157161500 is a wasteful number, since it uses less digits than its factorization.

157161500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143 (or 1131 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 157161500 is about 12536.4069812686. The cubic root of 157161500 is about 539.6539850077.

The spelling of 157161500 in words is "one hundred fifty-seven million, one hundred sixty-one thousand, five hundred".