157156986 has 16 divisors (see below), whose sum is σ = 359216064. Its totient is φ = 44901984.

The previous prime is 157156981. The next prime is 157156997. The reversal of 157156986 is 689651751.

157156986 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157156981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1870875 + ... + 1870958.

It is an arithmetic number, because the mean of its divisors is an integer number (22451004).

Almost surely, 2^157156986 is an apocalyptic number.

157156986 is an abundant number, since it is smaller than the sum of its proper divisors (202059078).

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

157156986 is a wasteful number, since it uses less digits than its factorization.

157156986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741845.

The product of its digits is 453600, while the sum is 48.

The square root of 157156986 is about 12536.2269443402. The cubic root of 157156986 is about 539.6488183025.

The spelling of 157156986 in words is "one hundred fifty-seven million, one hundred fifty-six thousand, nine hundred eighty-six".