151972969 has 8 divisors (see below), whose sum is σ = 154012320. Its totient is φ = 149947200.

The previous prime is 151972921. The next prime is 151972973. The reversal of 151972969 is 969279151.

151972969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 151972969 - 2⁷ = 151972841 is a prime.

It is a super-2 number, since 2×151972969² = 46191566613349922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (151972999) 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, 20209 + ... + 26689.

It is an arithmetic number, because the mean of its divisors is an integer number (19251540).

Almost surely, 2^151972969 is an apocalyptic number.

It is an amenable number.

151972969 is a deficient number, since it is larger than the sum of its proper divisors (2039351).

151972969 is a wasteful number, since it uses less digits than its factorization.

151972969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6791.

The product of its digits is 306180, while the sum is 49.

The square root of 151972969 is about 12327.7317053868. The cubic root of 151972969 is about 533.6486920948.

The spelling of 151972969 in words is "one hundred fifty-one million, nine hundred seventy-two thousand, nine hundred sixty-nine".