13069431 has 20 divisors (see below), whose sum is σ = 19944672. Its totient is φ = 8525088.

The previous prime is 13069421. The next prime is 13069439. The reversal of 13069431 is 13496031.

It is not a de Polignac number, because 13069431 - 2¹³ = 13061239 is a prime.

It is a super-2 number, since 2×13069431² = 341620053327522, which contains 22 as substring.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 13069395 and 13069404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13069439) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2091 + ... + 5523.

Almost surely, 2^13069431 is an apocalyptic number.

13069431 is a deficient number, since it is larger than the sum of its proper divisors (6875241).

13069431 is an equidigital number, since it uses as much as digits as its factorization.

13069431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3492 (or 3483 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 13069431 is about 3615.1668011310. The cubic root of 13069431 is about 235.5513296366.

The spelling of 13069431 in words is "thirteen million, sixty-nine thousand, four hundred thirty-one".