13331493 has 16 divisors (see below), whose sum is σ = 22572160. Its totient is φ = 7617888.

The previous prime is 13331473. The next prime is 13331501. The reversal of 13331493 is 39413331.

13331493 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13331493 - 2⁶ = 13331429 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331453) 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, 35080 + ... + 35457.

It is an arithmetic number, because the mean of its divisors is an integer number (1410760).

Almost surely, 2^13331493 is an apocalyptic number.

It is an amenable number.

13331493 is a deficient number, since it is larger than the sum of its proper divisors (9240667).

13331493 is an equidigital number, since it uses as much as digits as its factorization.

13331493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70553 (or 70547 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

The square root of 13331493 is about 3651.2317099850. The cubic root of 13331493 is about 237.1153100152.

It can be divided in two parts, 13331 and 493, that added together give a cube (13824 = 24³).

The spelling of 13331493 in words is "thirteen million, three hundred thirty-one thousand, four hundred ninety-three".