13052381 has 4 divisors (see below), whose sum is σ = 13087200. Its totient is φ = 13017564.

The previous prime is 13052341. The next prime is 13052383. The reversal of 13052381 is 18325031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 18325031 = 17 ⋅1077943.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13052381 is a prime.

It is a super-2 number, since 2×13052381² = 340729299538322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13052383) 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, 16841 + ... + 17598.

It is an arithmetic number, because the mean of its divisors is an integer number (3271800).

Almost surely, 2^13052381 is an apocalyptic number.

It is an amenable number.

13052381 is a deficient number, since it is larger than the sum of its proper divisors (34819).

13052381 is an equidigital number, since it uses as much as digits as its factorization.

13052381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34818.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 13052381 is about 3612.8079107531. The cubic root of 13052381 is about 235.4488539208.

The spelling of 13052381 in words is "thirteen million, fifty-two thousand, three hundred eighty-one".