125958173 has 4 divisors (see below), whose sum is σ = 137408928. Its totient is φ = 114507420.

The previous prime is 125958139. The next prime is 125958179. The reversal of 125958173 is 371859521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-125958173 is a prime.

It is a super-2 number, since 2×125958173² = 31730922690995858, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 125958173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125958179) 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, 5725361 + ... + 5725382.

It is an arithmetic number, because the mean of its divisors is an integer number (34352232).

Almost surely, 2^125958173 is an apocalyptic number.

It is an amenable number.

125958173 is a deficient number, since it is larger than the sum of its proper divisors (11450755).

125958173 is a wasteful number, since it uses less digits than its factorization.

125958173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11450754.

The product of its digits is 75600, while the sum is 41.

The square root of 125958173 is about 11223.1088830145. The cubic root of 125958173 is about 501.2743134912.

The spelling of 125958173 in words is "one hundred twenty-five million, nine hundred fifty-eight thousand, one hundred seventy-three".