13361389 has 4 divisors (see below), whose sum is σ = 14064640. Its totient is φ = 12658140.

The previous prime is 13361377. The next prime is 13361393. The reversal of 13361389 is 98316331.

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: 98316331 = 2621 ⋅37511.

It is a cyclic number.

It is not a de Polignac number, because 13361389 - 2⁵ = 13361357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13361339) 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, 351597 + ... + 351634.

It is an arithmetic number, because the mean of its divisors is an integer number (3516160).

Almost surely, 2^13361389 is an apocalyptic number.

13361389 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13361389 is a deficient number, since it is larger than the sum of its proper divisors (703251).

13361389 is an equidigital number, since it uses as much as digits as its factorization.

13361389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703250.

The product of its digits is 11664, while the sum is 34.

The square root of 13361389 is about 3655.3233783073. The cubic root of 13361389 is about 237.2924221361.

The spelling of 13361389 in words is "thirteen million, three hundred sixty-one thousand, three hundred eighty-nine".