157066187 has 4 divisors (see below), whose sum is σ = 157091256. Its totient is φ = 157041120.

The previous prime is 157066177. The next prime is 157066193. The reversal of 157066187 is 781660751.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 157066187 - 2⁴ = 157066171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157066177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5987 + ... + 18707.

It is an arithmetic number, because the mean of its divisors is an integer number (39272814).

Almost surely, 2^157066187 is an apocalyptic number.

157066187 is a deficient number, since it is larger than the sum of its proper divisors (25069).

157066187 is a wasteful number, since it uses less digits than its factorization.

157066187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25068.

The product of its (nonzero) digits is 70560, while the sum is 41.

The square root of 157066187 is about 12532.6049566720. The cubic root of 157066187 is about 539.5448691368.

The spelling of 157066187 in words is "one hundred fifty-seven million, sixty-six thousand, one hundred eighty-seven".