47111138 has 24 divisors (see below), whose sum is σ = 75264852. Its totient is φ = 22099392.

The previous prime is 47111083. The next prime is 47111143. The reversal of 47111138 is 83111174.

It can be written as a sum of positive squares in 6 ways, for example, as 37295449 + 9815689 = 6107^2 + 3133^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61856 + ... + 62612.

Almost surely, 2^47111138 is an apocalyptic number.

47111138 is a deficient number, since it is larger than the sum of its proper divisors (28153714).

47111138 is a wasteful number, since it uses less digits than its factorization.

47111138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 825 counting only the distinct ones).

The product of its digits is 672, while the sum is 26.

The square root of 47111138 is about 6863.7553860842. The cubic root of 47111138 is about 361.1668363777.

The spelling of 47111138 in words is "forty-seven million, one hundred eleven thousand, one hundred thirty-eight".