47138057 has 2 divisors, whose sum is σ = 47138058. Its totient is φ = 47138056.

The previous prime is 47138009. The next prime is 47138081. The reversal of 47138057 is 75083174.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32307856 + 14830201 = 5684^2 + 3851^2 .

It is a cyclic number.

It is not a de Polignac number, because 47138057 - 2¹⁰ = 47137033 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47138257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23569028 + 23569029.

It is an arithmetic number, because the mean of its divisors is an integer number (23569029).

Almost surely, 2^47138057 is an apocalyptic number.

It is an amenable number.

47138057 is a deficient number, since it is larger than the sum of its proper divisors (1).

47138057 is an equidigital number, since it uses as much as digits as its factorization.

47138057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 47138057 is about 6865.7160587953. The cubic root of 47138057 is about 361.2356127458.

The spelling of 47138057 in words is "forty-seven million, one hundred thirty-eight thousand, fifty-seven".