13642755 has 32 divisors (see below), whose sum is σ = 26417664. Its totient is φ = 5869056.

The previous prime is 13642753. The next prime is 13642757. The reversal of 13642755 is 55724631.

It is an interprime number because it is at equal distance from previous prime (13642753) and next prime (13642757).

It is not a de Polignac number, because 13642755 - 2¹ = 13642753 is a prime.

It is a super-2 number, since 2×13642755² = 372249527980050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13642753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2037 + ... + 5606.

It is an arithmetic number, because the mean of its divisors is an integer number (825552).

Almost surely, 2^13642755 is an apocalyptic number.

13642755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13642755 is a deficient number, since it is larger than the sum of its proper divisors (12774909).

13642755 is a wasteful number, since it uses less digits than its factorization.

13642755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7675.

The product of its digits is 25200, while the sum is 33.

The square root of 13642755 is about 3693.6100227284. The cubic root of 13642755 is about 238.9465109082.

The spelling of 13642755 in words is "thirteen million, six hundred forty-two thousand, seven hundred fifty-five".