12510491 has 8 divisors (see below), whose sum is σ = 14567904. Its totient is φ = 10520640.

The previous prime is 12510473. The next prime is 12510517. The reversal of 12510491 is 19401521.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12510491 - 2⁶ = 12510427 is a prime.

It is a super-2 number, since 2×12510491² = 313024770122162, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12510461) 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, 16490 + ... + 17231.

It is an arithmetic number, because the mean of its divisors is an integer number (1820988).

Almost surely, 2^12510491 is an apocalyptic number.

12510491 is a deficient number, since it is larger than the sum of its proper divisors (2057413).

12510491 is an equidigital number, since it uses as much as digits as its factorization.

12510491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33781.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 12510491 is about 3537.0172462118. The cubic root of 12510491 is about 232.1443500699.

The spelling of 12510491 in words is "twelve million, five hundred ten thousand, four hundred ninety-one".