13495649 has 8 divisors (see below), whose sum is σ = 13776000. Its totient is φ = 13218192.

The previous prime is 13495631. The next prime is 13495663. The reversal of 13495649 is 94659431.

13495649 = 240² + 241² + ... + 378².

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 13495649 - 2⁸ = 13495393 is a prime.

It is a super-3 number, since 3×13495649³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13495619) 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, 10367 + ... + 11595.

It is an arithmetic number, because the mean of its divisors is an integer number (1722000).

Almost surely, 2^13495649 is an apocalyptic number.

It is an amenable number.

13495649 is a deficient number, since it is larger than the sum of its proper divisors (280351).

13495649 is a wasteful number, since it uses less digits than its factorization.

13495649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1447.

The product of its digits is 116640, while the sum is 41.

The square root of 13495649 is about 3673.6424703555. The cubic root of 13495649 is about 238.0845743726.

The spelling of 13495649 in words is "thirteen million, four hundred ninety-five thousand, six hundred forty-nine".