11142657 has 16 divisors (see below), whose sum is σ = 16632000. Its totient is φ = 7372512.

The previous prime is 11142653. The next prime is 11142673. The reversal of 11142657 is 75624111.

It is a happy number.

11142657 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 2 + 657 = 666.

It is not a de Polignac number, because 11142657 - 2² = 11142653 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 11142657.

It is not an unprimeable number, because it can be changed into a prime (11142653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2269 + ... + 5237.

It is an arithmetic number, because the mean of its divisors is an integer number (1039500).

Almost surely, 2^11142657 is an apocalyptic number.

It is an amenable number.

11142657 is a deficient number, since it is larger than the sum of its proper divisors (5489343).

11142657 is a wasteful number, since it uses less digits than its factorization.

11142657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3117 (or 3111 counting only the distinct ones).

The product of its digits is 1680, while the sum is 27.

The square root of 11142657 is about 3338.0618628180. The cubic root of 11142657 is about 223.3552957288.

Adding to 11142657 its reverse (75624111), we get a palindrome (86766768).

The spelling of 11142657 in words is "eleven million, one hundred forty-two thousand, six hundred fifty-seven".