11157064 has 8 divisors (see below), whose sum is σ = 20919510. Its totient is φ = 5578528.

The previous prime is 11157061. The next prime is 11157071. The reversal of 11157064 is 46075111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8122500 + 3034564 = 2850^2 + 1742^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (11157061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 697309 + ... + 697324.

Almost surely, 2^11157064 is an apocalyptic number.

It is an amenable number.

11157064 is a deficient number, since it is larger than the sum of its proper divisors (9762446).

11157064 is a wasteful number, since it uses less digits than its factorization.

11157064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394639 (or 1394635 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The square root of 11157064 is about 3340.2191544867. The cubic root of 11157064 is about 223.4515173595.

It can be divided in two parts, 111 and 57064, that added together give a palindrome (57175).

The spelling of 11157064 in words is "eleven million, one hundred fifty-seven thousand, sixty-four".