47456137 has 4 divisors (see below), whose sum is σ = 47470720. Its totient is φ = 47441556.

The previous prime is 47456131. The next prime is 47456141. The reversal of 47456137 is 73165474.

47456137 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47456137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47456096 and 47456105.

It is not an unprimeable number, because it can be changed into a prime (47456131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64 + ... + 9742.

It is an arithmetic number, because the mean of its divisors is an integer number (11867680).

Almost surely, 2^47456137 is an apocalyptic number.

It is an amenable number.

47456137 is a deficient number, since it is larger than the sum of its proper divisors (14583).

47456137 is an equidigital number, since it uses as much as digits as its factorization.

47456137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14582.

The product of its digits is 70560, while the sum is 37.

The square root of 47456137 is about 6888.8414846039. The cubic root of 47456137 is about 362.0463118511.

The spelling of 47456137 in words is "forty-seven million, four hundred fifty-six thousand, one hundred thirty-seven".