10391251 has 16 divisors (see below), whose sum is σ = 11864160. Its totient is φ = 9031680.

The previous prime is 10391221. The next prime is 10391279. The reversal of 10391251 is 15219301.

It is a cyclic number.

It is not a de Polignac number, because 10391251 - 2⁵ = 10391219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10391221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15891 + ... + 16531.

It is an arithmetic number, because the mean of its divisors is an integer number (741510).

Almost surely, 2^10391251 is an apocalyptic number.

10391251 is a deficient number, since it is larger than the sum of its proper divisors (1472909).

10391251 is a wasteful number, since it uses less digits than its factorization.

10391251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726.

The product of its (nonzero) digits is 270, while the sum is 22.

The square root of 10391251 is about 3223.5463390496. The cubic root of 10391251 is about 218.2173504893.

The spelling of 10391251 in words is "ten million, three hundred ninety-one thousand, two hundred fifty-one".