125001173 has 4 divisors (see below), whose sum is σ = 136364928. Its totient is φ = 113637420.

The previous prime is 125001143. The next prime is 125001181. The reversal of 125001173 is 371100521.

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 not a de Polignac number, because 125001173 - 2⁸ = 125000917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125001103) 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, 5681861 + ... + 5681882.

It is an arithmetic number, because the mean of its divisors is an integer number (34091232).

Almost surely, 2^125001173 is an apocalyptic number.

It is an amenable number.

125001173 is a deficient number, since it is larger than the sum of its proper divisors (11363755).

125001173 is a wasteful number, since it uses less digits than its factorization.

125001173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11363754.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 125001173 is about 11180.3923455306. The cubic root of 125001173 is about 500.0015639951.

Adding to 125001173 its reverse (371100521), we get a palindrome (496101694).

The spelling of 125001173 in words is "one hundred twenty-five million, one thousand, one hundred seventy-three".