13520277 has 12 divisors (see below), whose sum is σ = 20252960. Its totient is φ = 9013356.

The previous prime is 13520249. The next prime is 13520279. The reversal of 13520277 is 77202531.

It is not a de Polignac number, because 13520277 - 2⁷ = 13520149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13520277.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13520279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27577 + ... + 28062.

Almost surely, 2^13520277 is an apocalyptic number.

It is an amenable number.

13520277 is a deficient number, since it is larger than the sum of its proper divisors (6732683).

13520277 is an frugal number, since it uses more digits than its factorization.

13520277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55654 (or 55642 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 13520277 is about 3676.9929290114. The cubic root of 13520277 is about 238.2293119776.

The spelling of 13520277 in words is "thirteen million, five hundred twenty thousand, two hundred seventy-seven".