12519431 has 8 divisors (see below), whose sum is σ = 12902064. Its totient is φ = 12139200.

The previous prime is 12519421. The next prime is 12519449. The reversal of 12519431 is 13491521.

12519431 is nontrivially palindromic in base 5.

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 12519431 - 2¹⁴ = 12503047 is a prime.

It is a super-2 number, since 2×12519431² = 313472305127522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12519431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12519401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20531 + ... + 21131.

It is an arithmetic number, because the mean of its divisors is an integer number (1612758).

Almost surely, 2^12519431 is an apocalyptic number.

12519431 is a deficient number, since it is larger than the sum of its proper divisors (382633).

12519431 is an equidigital number, since it uses as much as digits as its factorization.

12519431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1201.

The product of its digits is 1080, while the sum is 26.

The square root of 12519431 is about 3538.2807972234. The cubic root of 12519431 is about 232.1996337069.

The spelling of 12519431 in words is "twelve million, five hundred nineteen thousand, four hundred thirty-one".