13488731 has 4 divisors (see below), whose sum is σ = 13500264. Its totient is φ = 13477200.

The previous prime is 13488719. The next prime is 13488737. The reversal of 13488731 is 13788431.

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

It is a cyclic number.

It is not a de Polignac number, because 13488731 - 2¹⁰ = 13487707 is a prime.

It is a super-2 number, since 2×13488731² = 363891727980722, 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 = 13488691 and 13488700.

It is not an unprimeable number, because it can be changed into a prime (13488737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3785 + ... + 6426.

It is an arithmetic number, because the mean of its divisors is an integer number (3375066).

Almost surely, 2^13488731 is an apocalyptic number.

13488731 is a deficient number, since it is larger than the sum of its proper divisors (11533).

13488731 is a wasteful number, since it uses less digits than its factorization.

13488731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11532.

The product of its digits is 16128, while the sum is 35.

The square root of 13488731 is about 3672.7007773572. The cubic root of 13488731 is about 238.0438859354.

The spelling of 13488731 in words is "thirteen million, four hundred eighty-eight thousand, seven hundred thirty-one".