157161860 has 12 divisors (see below), whose sum is σ = 330039948. Its totient is φ = 62864736.

The previous prime is 157161799. The next prime is 157161871. The reversal of 157161860 is 68161751.

It can be written as a sum of positive squares in 2 ways, for example, as 121925764 + 35236096 = 11042^2 + 5936^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 157161860.

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, 3929027 + ... + 3929066.

It is an arithmetic number, because the mean of its divisors is an integer number (27503329).

Almost surely, 2^157161860 is an apocalyptic number.

157161860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157161860 is an abundant number, since it is smaller than the sum of its proper divisors (172878088).

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

157161860 is a wasteful number, since it uses less digits than its factorization.

157161860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7858102 (or 7858100 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 157161860 is about 12536.4213394413. The cubic root of 157161860 is about 539.6543970579.

It can be divided in two parts, 15716 and 1860, that added together give a cube (17576 = 26³).

The spelling of 157161860 in words is "one hundred fifty-seven million, one hundred sixty-one thousand, eight hundred sixty".