11557134 has 16 divisors (see below), whose sum is σ = 25682640. Its totient is φ = 3852360.

The previous prime is 11557129. The next prime is 11557151. The reversal of 11557134 is 43175511.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11557098 and 11557107.

It is a congruent number.

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, 106957 + ... + 107064.

It is an arithmetic number, because the mean of its divisors is an integer number (1605165).

Almost surely, 2^11557134 is an apocalyptic number.

11557134 is an abundant number, since it is smaller than the sum of its proper divisors (14125506).

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

11557134 is a wasteful number, since it uses less digits than its factorization.

11557134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214032 (or 214026 counting only the distinct ones).

The product of its digits is 2100, while the sum is 27.

The square root of 11557134 is about 3399.5785032854. The cubic root of 11557134 is about 226.0910563198.

It can be divided in two parts, 1155 and 7134, that multiplied together give a triangular number (8239770 = T₄₀₅₉).

The spelling of 11557134 in words is "eleven million, five hundred fifty-seven thousand, one hundred thirty-four".