13067431 has 4 divisors (see below), whose sum is σ = 14072632. Its totient is φ = 12062232.

The previous prime is 13067423. The next prime is 13067447. The reversal of 13067431 is 13476031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13067431 - 2³ = 13067423 is a prime.

It is a super-2 number, since 2×13067431² = 341515505879522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13067396 and 13067405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13067491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 502581 + ... + 502606.

It is an arithmetic number, because the mean of its divisors is an integer number (3518158).

Almost surely, 2^13067431 is an apocalyptic number.

13067431 is a deficient number, since it is larger than the sum of its proper divisors (1005201).

13067431 is a wasteful number, since it uses less digits than its factorization.

13067431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005200.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 13067431 is about 3614.8901781382. The cubic root of 13067431 is about 235.5393136405.

The spelling of 13067431 in words is "thirteen million, sixty-seven thousand, four hundred thirty-one".