151972916 has 6 divisors (see below), whose sum is σ = 265952610. Its totient is φ = 75986456.

The previous prime is 151972903. The next prime is 151972921. The reversal of 151972916 is 619279151.

It can be written as a sum of positive squares in only one way, i.e., 127012900 + 24960016 = 11270^2 + 4996^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18996611 + ... + 18996618.

It is an arithmetic number, because the mean of its divisors is an integer number (44325435).

Almost surely, 2^151972916 is an apocalyptic number.

It is an amenable number.

151972916 is a deficient number, since it is larger than the sum of its proper divisors (113979694).

151972916 is a wasteful number, since it uses less digits than its factorization.

151972916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37993233 (or 37993231 counting only the distinct ones).

The product of its digits is 34020, while the sum is 41.

The square root of 151972916 is about 12327.7295557617. The cubic root of 151972916 is about 533.6486300588.

The spelling of 151972916 in words is "one hundred fifty-one million, nine hundred seventy-two thousand, nine hundred sixteen".