47155137 has 8 divisors (see below), whose sum is σ = 63580320. Its totient is φ = 31083360.

The previous prime is 47155117. The next prime is 47155139. The reversal of 47155137 is 73155174.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 47155137 - 2²⁰ = 46106561 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47155098 and 47155107.

It is not an unprimeable number, because it can be changed into a prime (47155139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88039 + ... + 88572.

It is an arithmetic number, because the mean of its divisors is an integer number (7947540).

Almost surely, 2^47155137 is an apocalyptic number.

It is an amenable number.

47155137 is a deficient number, since it is larger than the sum of its proper divisors (16425183).

47155137 is a wasteful number, since it uses less digits than its factorization.

47155137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176703.

The product of its digits is 14700, while the sum is 33.

The square root of 47155137 is about 6866.9598076587. The cubic root of 47155137 is about 361.2792375054.

The spelling of 47155137 in words is "forty-seven million, one hundred fifty-five thousand, one hundred thirty-seven".