47161157 has 2 divisors, whose sum is σ = 47161158. Its totient is φ = 47161156.

The previous prime is 47161151. The next prime is 47161207. The reversal of 47161157 is 75116174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41396356 + 5764801 = 6434^2 + 2401^2 .

It is a cyclic number.

It is not a de Polignac number, because 47161157 - 2⁴ = 47161141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47161151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23580578 + 23580579.

It is an arithmetic number, because the mean of its divisors is an integer number (23580579).

Almost surely, 2^47161157 is an apocalyptic number.

It is an amenable number.

47161157 is a deficient number, since it is larger than the sum of its proper divisors (1).

47161157 is an equidigital number, since it uses as much as digits as its factorization.

47161157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5880, while the sum is 32.

The square root of 47161157 is about 6867.3981244719. The cubic root of 47161157 is about 361.2946109345.

The spelling of 47161157 in words is "forty-seven million, one hundred sixty-one thousand, one hundred fifty-seven".