125149582073 has 16 divisors (see below), whose sum is σ = 128744624400. Its totient is φ = 121609728000.

The previous prime is 125149582013. The next prime is 125149582079. The reversal of 125149582073 is 370285941521.

It can be written as a sum of positive squares in 8 ways, for example, as 18735313129 + 106414268944 = 136877^2 + 326212^2 .

It is a cyclic number.

It is not a de Polignac number, because 125149582073 - 2¹⁰ = 125149581049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125149582079) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2793353 + ... + 2837801.

It is an arithmetic number, because the mean of its divisors is an integer number (8046539025).

Almost surely, 2^125149582073 is an apocalyptic number.

It is an amenable number.

125149582073 is a deficient number, since it is larger than the sum of its proper divisors (3595042327).

125149582073 is a wasteful number, since it uses less digits than its factorization.

125149582073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45068.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 125149582073 in words is "one hundred twenty-five billion, one hundred forty-nine million, five hundred eighty-two thousand, seventy-three".