125354143503 has 6 divisors (see below), whose sum is σ = 181067096184. Its totient is φ = 83569428996.

The previous prime is 125354143489. The next prime is 125354143513. The reversal of 125354143503 is 305341453521.

125354143503 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 5 + 4 + 143 + 503 = 666.

It is not a de Polignac number, because 125354143503 - 2⁵ = 125354143471 is a prime.

It is a super-2 number, since 2×125354143503² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125354143513) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6964119075 + ... + 6964119092.

It is an arithmetic number, because the mean of its divisors is an integer number (30177849364).

Almost surely, 2^125354143503 is an apocalyptic number.

125354143503 is a deficient number, since it is larger than the sum of its proper divisors (55712952681).

125354143503 is a wasteful number, since it uses less digits than its factorization.

125354143503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13928238173 (or 13928238170 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

The spelling of 125354143503 in words is "one hundred twenty-five billion, three hundred fifty-four million, one hundred forty-three thousand, five hundred three".