11634138 has 16 divisors (see below), whose sum is σ = 25853760. Its totient is φ = 3878028.

The previous prime is 11634121. The next prime is 11634149. The reversal of 11634138 is 83143611.

11634138 is a `hidden beast` number, since 11 + 634 + 13 + 8 = 666.

11634138 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 14.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 107670 + ... + 107777.

It is an arithmetic number, because the mean of its divisors is an integer number (1615860).

Almost surely, 2^11634138 is an apocalyptic number.

11634138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

11634138 is an abundant number, since it is smaller than the sum of its proper divisors (14219622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11634138 is a wasteful number, since it uses less digits than its factorization.

11634138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 215458 (or 215452 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 11634138 is about 3410.8852223433. The cubic root of 11634138 is about 226.5920857091.

Adding to 11634138 its reverse (83143611), we get a palindrome (94777749).

The spelling of 11634138 in words is "eleven million, six hundred thirty-four thousand, one hundred thirty-eight".