156974966 has 8 divisors (see below), whose sum is σ = 238688184. Its totient is φ = 77412240.

The previous prime is 156974963. The next prime is 156974989. The reversal of 156974966 is 669479651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×156974966² = 49282279901402312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (156974963) 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, 537440 + ... + 537731.

It is an arithmetic number, because the mean of its divisors is an integer number (29836023).

Almost surely, 2^156974966 is an apocalyptic number.

156974966 is a deficient number, since it is larger than the sum of its proper divisors (81713218).

156974966 is a wasteful number, since it uses less digits than its factorization.

156974966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1075246.

The product of its digits is 2449440, while the sum is 53.

The square root of 156974966 is about 12528.9650809634. The cubic root of 156974966 is about 539.4403965048.

The spelling of 156974966 in words is "one hundred fifty-six million, nine hundred seventy-four thousand, nine hundred sixty-six".