13539955 has 32 divisors (see below), whose sum is σ = 19776960. Its totient is φ = 8762880.

The previous prime is 13539949. The next prime is 13539961. The reversal of 13539955 is 55993531.

It is an interprime number because it is at equal distance from previous prime (13539949) and next prime (13539961).

It is not a de Polignac number, because 13539955 - 2¹¹ = 13537907 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20409 + ... + 21061.

It is an arithmetic number, because the mean of its divisors is an integer number (618030).

Almost surely, 2^13539955 is an apocalyptic number.

13539955 is a deficient number, since it is larger than the sum of its proper divisors (6237005).

13539955 is a wasteful number, since it uses less digits than its factorization.

13539955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711.

The product of its digits is 91125, while the sum is 40.

The square root of 13539955 is about 3679.6677839175. The cubic root of 13539955 is about 238.3448323900.

The spelling of 13539955 in words is "thirteen million, five hundred thirty-nine thousand, nine hundred fifty-five".