13458913 has 4 divisors (see below), whose sum is σ = 14494228. Its totient is φ = 12423600.

The previous prime is 13458911. The next prime is 13458919. The reversal of 13458913 is 31985431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1292769 + 12166144 = 1137^2 + 3488^2 .

It is a cyclic number.

It is not a de Polignac number, because 13458913 - 2¹ = 13458911 is a prime.

It is a super-2 number, since 2×13458913² = 362284678283138, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13458911) 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, 517638 + ... + 517663.

It is an arithmetic number, because the mean of its divisors is an integer number (3623557).

Almost surely, 2^13458913 is an apocalyptic number.

13458913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13458913 is a deficient number, since it is larger than the sum of its proper divisors (1035315).

13458913 is a wasteful number, since it uses less digits than its factorization.

13458913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035314.

The product of its digits is 12960, while the sum is 34.

The square root of 13458913 is about 3668.6391209821. The cubic root of 13458913 is about 237.8683510323.

The spelling of 13458913 in words is "thirteen million, four hundred fifty-eight thousand, nine hundred thirteen".