125840526737 has 2 divisors, whose sum is σ = 125840526738. Its totient is φ = 125840526736.

The previous prime is 125840526671. The next prime is 125840526743. The reversal of 125840526737 is 737625048521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74436754561 + 51403772176 = 272831^2 + 226724^2 .

It is a cyclic number.

It is not a de Polignac number, because 125840526737 - 2²⁶ = 125773417873 is a prime.

It is a super-2 number, since 2×125840526737² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (125840526787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62920263368 + 62920263369.

It is an arithmetic number, because the mean of its divisors is an integer number (62920263369).

Almost surely, 2^125840526737 is an apocalyptic number.

It is an amenable number.

125840526737 is a deficient number, since it is larger than the sum of its proper divisors (1).

125840526737 is an equidigital number, since it uses as much as digits as its factorization.

125840526737 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 125840526737 in words is "one hundred twenty-five billion, eight hundred forty million, five hundred twenty-six thousand, seven hundred thirty-seven".