125134043502 has 16 divisors (see below), whose sum is σ = 269519478480. Its totient is φ = 38502782592.

The previous prime is 125134043473. The next prime is 125134043509. The reversal of 125134043502 is 205340431521.

It is a self number, because there is not a number n which added to its sum of digits gives 125134043502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125134043509) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802141227 + ... + 802141382.

It is an arithmetic number, because the mean of its divisors is an integer number (16844967405).

Almost surely, 2^125134043502 is an apocalyptic number.

125134043502 is an abundant number, since it is smaller than the sum of its proper divisors (144385434978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125134043502 is a wasteful number, since it uses less digits than its factorization.

125134043502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604282627.

The product of its (nonzero) digits is 14400, while the sum is 30.

The spelling of 125134043502 in words is "one hundred twenty-five billion, one hundred thirty-four million, forty-three thousand, five hundred two".