13540807 has 6 divisors (see below), whose sum is σ = 15751608. Its totient is φ = 11606364.

The previous prime is 13540801. The next prime is 13540817. The reversal of 13540807 is 70804531.

It is not a de Polignac number, because 13540807 - 2³ = 13540799 is a prime.

It is a super-2 number, since 2×13540807² = 366706908422498, 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 (13540801) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138123 + ... + 138220.

It is an arithmetic number, because the mean of its divisors is an integer number (2625268).

Almost surely, 2^13540807 is an apocalyptic number.

13540807 is a deficient number, since it is larger than the sum of its proper divisors (2210801).

13540807 is an equidigital number, since it uses as much as digits as its factorization.

13540807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276357 (or 276350 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 13540807 is about 3679.7835534172. The cubic root of 13540807 is about 238.3498315582.

The spelling of 13540807 in words is "thirteen million, five hundred forty thousand, eight hundred seven".