11976157 has 4 divisors (see below), whose sum is σ = 12086140. Its totient is φ = 11866176.

The previous prime is 11976131. The next prime is 11976179. The reversal of 11976157 is 75167911.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4691556 + 7284601 = 2166^2 + 2699^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11976157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11976257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54828 + ... + 55045.

It is an arithmetic number, because the mean of its divisors is an integer number (3021535).

Almost surely, 2^11976157 is an apocalyptic number.

It is an amenable number.

11976157 is a deficient number, since it is larger than the sum of its proper divisors (109983).

11976157 is a wasteful number, since it uses less digits than its factorization.

11976157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109982.

The product of its digits is 13230, while the sum is 37.

The square root of 11976157 is about 3460.6584633564. The cubic root of 11976157 is about 228.7911178537.

The spelling of 11976157 in words is "eleven million, nine hundred seventy-six thousand, one hundred fifty-seven".