47157137 has 2 divisors, whose sum is σ = 47157138. Its totient is φ = 47157136.

The previous prime is 47157119. The next prime is 47157151. The reversal of 47157137 is 73175174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39450961 + 7706176 = 6281^2 + 2776^2 .

It is a cyclic number.

It is not a de Polignac number, because 47157137 - 2⁸ = 47156881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47157097 and 47157106.

It is not a weakly prime, because it can be changed into another prime (47157157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23578568 + 23578569.

It is an arithmetic number, because the mean of its divisors is an integer number (23578569).

Almost surely, 2^47157137 is an apocalyptic number.

It is an amenable number.

47157137 is a deficient number, since it is larger than the sum of its proper divisors (1).

47157137 is an equidigital number, since it uses as much as digits as its factorization.

47157137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20580, while the sum is 35.

The square root of 47157137 is about 6867.1054309658. The cubic root of 47157137 is about 361.2843451021.

The spelling of 47157137 in words is "forty-seven million, one hundred fifty-seven thousand, one hundred thirty-seven".