47227137 has 4 divisors (see below), whose sum is σ = 62969520. Its totient is φ = 31484756.

The previous prime is 47227129. The next prime is 47227153. The reversal of 47227137 is 73172274.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47227137 - 2³ = 47227129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47227098 and 47227107.

It is not an unprimeable number, because it can be changed into a prime (47227127) 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, 7871187 + ... + 7871192.

It is an arithmetic number, because the mean of its divisors is an integer number (15742380).

Almost surely, 2^47227137 is an apocalyptic number.

It is an amenable number.

47227137 is a deficient number, since it is larger than the sum of its proper divisors (15742383).

47227137 is a wasteful number, since it uses less digits than its factorization.

47227137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15742382.

The product of its digits is 16464, while the sum is 33.

The square root of 47227137 is about 6872.2003026687. The cubic root of 47227137 is about 361.4630200786.

The spelling of 47227137 in words is "forty-seven million, two hundred twenty-seven thousand, one hundred thirty-seven".