13367431 has 16 divisors (see below), whose sum is σ = 17544960. Its totient is φ = 9866880.

The previous prime is 13367401. The next prime is 13367437. The reversal of 13367431 is 13476331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 13367431 - 2⁹ = 13366919 is a prime.

It is a super-2 number, since 2×13367431² = 357376423079522, 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 13367431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13367437) 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, 3106 + ... + 6031.

It is an arithmetic number, because the mean of its divisors is an integer number (1096560).

Almost surely, 2^13367431 is an apocalyptic number.

13367431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13367431 is a deficient number, since it is larger than the sum of its proper divisors (4177529).

13367431 is a wasteful number, since it uses less digits than its factorization.

13367431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9174.

The product of its digits is 4536, while the sum is 28.

The square root of 13367431 is about 3656.1497507624. The cubic root of 13367431 is about 237.3281845048.

Subtracting 13367431 from its reverse (13476331), we obtain a square (108900 = 330²).

The spelling of 13367431 in words is "thirteen million, three hundred sixty-seven thousand, four hundred thirty-one".