13649069 has 8 divisors (see below), whose sum is σ = 15650688. Its totient is φ = 11660400.

The previous prime is 13649063. The next prime is 13649093. The reversal of 13649069 is 96094631.

13649069 = 2132² + 2133² + 2134².

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 13649069 - 2²⁰ = 12600493 is a prime.

It is a super-2 number, since 2×13649069² = 372594169133522, 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 (13649063) 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, 857 + ... + 5294.

It is an arithmetic number, because the mean of its divisors is an integer number (1956336).

Almost surely, 2^13649069 is an apocalyptic number.

It is an amenable number.

13649069 is a deficient number, since it is larger than the sum of its proper divisors (2001619).

13649069 is an equidigital number, since it uses as much as digits as its factorization.

13649069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6475.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 13649069 is about 3694.4646432196. The cubic root of 13649069 is about 238.9833674810.

The spelling of 13649069 in words is "thirteen million, six hundred forty-nine thousand, sixty-nine".