13641049 has 8 divisors (see below), whose sum is σ = 14493960. Its totient is φ = 12813696.

The previous prime is 13641041. The next prime is 13641073. The reversal of 13641049 is 94014631.

It can be written as a sum of positive squares in 4 ways, for example, as 8497225 + 5143824 = 2915^2 + 2268^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13641049 - 2³ = 13641041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13641041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5284 + ... + 7429.

It is an arithmetic number, because the mean of its divisors is an integer number (1811745).

Almost surely, 2^13641049 is an apocalyptic number.

It is an amenable number.

13641049 is a deficient number, since it is larger than the sum of its proper divisors (852911).

13641049 is a wasteful number, since it uses less digits than its factorization.

13641049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12779.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13641049 is about 3693.3790761307. The cubic root of 13641049 is about 238.9365505607.

The spelling of 13641049 in words is "thirteen million, six hundred forty-one thousand, forty-nine".