13049431 has 2 divisors, whose sum is σ = 13049432. Its totient is φ = 13049430.

The previous prime is 13049417. The next prime is 13049437. The reversal of 13049431 is 13494031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13049431 - 2¹⁷ = 12918359 is a prime.

It is a super-2 number, since 2×13049431² = 340575298847522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13049396 and 13049405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13049437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6524715 + 6524716.

It is an arithmetic number, because the mean of its divisors is an integer number (6524716).

Almost surely, 2^13049431 is an apocalyptic number.

13049431 is a deficient number, since it is larger than the sum of its proper divisors (1).

13049431 is an equidigital number, since it uses as much as digits as its factorization.

13049431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 13049431 is about 3612.3996179825. The cubic root of 13049431 is about 235.4311144638.

The spelling of 13049431 in words is "thirteen million, forty-nine thousand, four hundred thirty-one".