131200057 has 2 divisors, whose sum is σ = 131200058. Its totient is φ = 131200056.

The previous prime is 131200007. The next prime is 131200063. The reversal of 131200057 is 750002131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124970041 + 6230016 = 11179^2 + 2496^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131200057 is a prime.

It is not a weakly prime, because it can be changed into another prime (131200007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65600028 + 65600029.

It is an arithmetic number, because the mean of its divisors is an integer number (65600029).

Almost surely, 2^131200057 is an apocalyptic number.

It is an amenable number.

131200057 is a deficient number, since it is larger than the sum of its proper divisors (1).

131200057 is an equidigital number, since it uses as much as digits as its factorization.

131200057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 131200057 is about 11454.2593387787. The cubic root of 131200057 is about 508.1337106954.

Adding to 131200057 its reverse (750002131), we get a palindrome (881202188).

The spelling of 131200057 in words is "one hundred thirty-one million, two hundred thousand, fifty-seven".