10125921 has 8 divisors (see below), whose sum is σ = 14539840. Its totient is φ = 6231312.

The previous prime is 10125887. The next prime is 10125923. The reversal of 10125921 is 12952101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10125921 - 2⁷ = 10125793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10125923) 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, 129781 + ... + 129858.

It is an arithmetic number, because the mean of its divisors is an integer number (1817480).

Almost surely, 2^10125921 is an apocalyptic number.

It is an amenable number.

10125921 is a deficient number, since it is larger than the sum of its proper divisors (4413919).

10125921 is a wasteful number, since it uses less digits than its factorization.

10125921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259655.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 10125921 is about 3182.1252332364. The cubic root of 10125921 is about 216.3439949119.

The spelling of 10125921 in words is "ten million, one hundred twenty-five thousand, nine hundred twenty-one".