13641379 has 2 divisors, whose sum is σ = 13641380. Its totient is φ = 13641378.

The previous prime is 13641371. The next prime is 13641389. The reversal of 13641379 is 97314631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13641379 - 2³ = 13641371 is a prime.

It is not a weakly prime, because it can be changed into another prime (13641371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6820689 + 6820690.

It is an arithmetic number, because the mean of its divisors is an integer number (6820690).

Almost surely, 2^13641379 is an apocalyptic number.

13641379 is a deficient number, since it is larger than the sum of its proper divisors (1).

13641379 is an equidigital number, since it uses as much as digits as its factorization.

13641379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13608, while the sum is 34.

The square root of 13641379 is about 3693.4237503975. The cubic root of 13641379 is about 238.9384773047.

The spelling of 13641379 in words is "thirteen million, six hundred forty-one thousand, three hundred seventy-nine".