125072537270137 has 4 divisors (see below), whose sum is σ = 125911950272100. Its totient is φ = 124233124268176.

The previous prime is 125072537270123. The next prime is 125072537270201. The reversal of 125072537270137 is 731072735270521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4851750723561 + 120220786546576 = 2202669^2 + 10964524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125072537270137 is a prime.

It is a super-2 number, since 2×125072537270137² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125072537270537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 419706500758 + ... + 419706501055.

It is an arithmetic number, because the mean of its divisors is an integer number (31477987568025).

Almost surely, 2^{125072537270137} is an apocalyptic number.

It is an amenable number.

125072537270137 is a deficient number, since it is larger than the sum of its proper divisors (839413001963).

125072537270137 is an equidigital number, since it uses as much as digits as its factorization.

125072537270137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839413001962.

The product of its (nonzero) digits is 4321800, while the sum is 52.

The spelling of 125072537270137 in words is "one hundred twenty-five trillion, seventy-two billion, five hundred thirty-seven million, two hundred seventy thousand, one hundred thirty-seven".