125042140537 has 2 divisors, whose sum is σ = 125042140538. Its totient is φ = 125042140536.

The previous prime is 125042140523. The next prime is 125042140541. The reversal of 125042140537 is 735041240521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70044386281 + 54997754256 = 264659^2 + 234516^2 .

It is a cyclic number.

It is not a de Polignac number, because 125042140537 - 2²³ = 125033751929 is a prime.

It is not a weakly prime, because it can be changed into another prime (125042141537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62521070268 + 62521070269.

It is an arithmetic number, because the mean of its divisors is an integer number (62521070269).

Almost surely, 2^125042140537 is an apocalyptic number.

It is an amenable number.

125042140537 is a deficient number, since it is larger than the sum of its proper divisors (1).

125042140537 is an equidigital number, since it uses as much as digits as its factorization.

125042140537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 34.

The spelling of 125042140537 in words is "one hundred twenty-five billion, forty-two million, one hundred forty thousand, five hundred thirty-seven".