11639135 has 16 divisors (see below), whose sum is σ = 14904000. Its totient is φ = 8695296.

The previous prime is 11639099. The next prime is 11639137. The reversal of 11639135 is 53193611.

It is not a de Polignac number, because 11639135 - 2⁶ = 11639071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11639098 and 11639107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11639137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12206 + ... + 13124.

It is an arithmetic number, because the mean of its divisors is an integer number (931500).

Almost surely, 2^11639135 is an apocalyptic number.

11639135 is a deficient number, since it is larger than the sum of its proper divisors (3264865).

11639135 is a wasteful number, since it uses less digits than its factorization.

11639135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090.

The product of its digits is 2430, while the sum is 29.

The square root of 11639135 is about 3411.6176514961. The cubic root of 11639135 is about 226.6245223933.

The spelling of 11639135 in words is "eleven million, six hundred thirty-nine thousand, one hundred thirty-five".