47972151 has 6 divisors (see below), whose sum is σ = 69293120. Its totient is φ = 31981428.

The previous prime is 47972129. The next prime is 47972153. The reversal of 47972151 is 15127974.

It is a happy number.

It is not a de Polignac number, because 47972151 - 2⁶ = 47972087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47972153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2665111 + ... + 2665128.

Almost surely, 2^47972151 is an apocalyptic number.

47972151 is a deficient number, since it is larger than the sum of its proper divisors (21320969).

47972151 is a wasteful number, since it uses less digits than its factorization.

47972151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330245 (or 5330242 counting only the distinct ones).

The product of its digits is 17640, while the sum is 36.

The square root of 47972151 is about 6926.1931102157. The cubic root of 47972151 is about 363.3538202590.

The spelling of 47972151 in words is "forty-seven million, nine hundred seventy-two thousand, one hundred fifty-one".