11742156 has 18 divisors (see below), whose sum is σ = 29681652. Its totient is φ = 3914040.

The previous prime is 11742109. The next prime is 11742173. The reversal of 11742156 is 65124711.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 163050 + ... + 163121.

Almost surely, 2^11742156 is an apocalyptic number.

It is an amenable number.

11742156 is an abundant number, since it is smaller than the sum of its proper divisors (17939496).

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

11742156 is a wasteful number, since it uses less digits than its factorization.

11742156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326181 (or 326176 counting only the distinct ones).

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

The square root of 11742156 is about 3426.6829441896. The cubic root of 11742156 is about 227.2911967342.

Adding to 11742156 its reverse (65124711), we get a palindrome (76866867).

The spelling of 11742156 in words is "eleven million, seven hundred forty-two thousand, one hundred fifty-six".