151972 has 6 divisors (see below), whose sum is σ = 265958. Its totient is φ = 75984.

The previous prime is 151969. The next prime is 152003. The reversal of 151972 is 279151.

It can be written as a sum of positive squares in only one way, i.e., 86436 + 65536 = 294^2 + 256^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18993 + ... + 19000.

2¹⁵¹⁹⁷² is an apocalyptic number.

It is an amenable number.

151972 is a deficient number, since it is larger than the sum of its proper divisors (113986).

151972 is a wasteful number, since it uses less digits than its factorization.

151972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37997 (or 37995 counting only the distinct ones).

The product of its digits is 630, while the sum is 25.

The square root of 151972 is about 389.8358628962. The cubic root of 151972 is about 53.3647557887.

The spelling of 151972 in words is "one hundred fifty-one thousand, nine hundred seventy-two".