13685501 has 8 divisors (see below), whose sum is σ = 14045400. Its totient is φ = 13329472.

The previous prime is 13685479. The next prime is 13685521. The reversal of 13685501 is 10558631.

It can be written as a sum of positive squares in 4 ways, for example, as 912025 + 12773476 = 955^2 + 3574^2 .

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 13685501 - 2²² = 9491197 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 (13685521) 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, 7031 + ... + 8763.

It is an arithmetic number, because the mean of its divisors is an integer number (1755675).

Almost surely, 2^13685501 is an apocalyptic number.

It is an amenable number.

13685501 is a deficient number, since it is larger than the sum of its proper divisors (359899).

13685501 is a wasteful number, since it uses less digits than its factorization.

13685501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1935.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 13685501 is about 3699.3919770687. The cubic root of 13685501 is about 239.1958094906.

The spelling of 13685501 in words is "thirteen million, six hundred eighty-five thousand, five hundred one".