11982137 has 4 divisors (see below), whose sum is σ = 12002676. Its totient is φ = 11961600.

The previous prime is 11982109. The next prime is 11982163. The reversal of 11982137 is 73128911.

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 6130576 + 5851561 = 2476^2 + 2419^2 .

It is a cyclic number.

It is not a de Polignac number, because 11982137 - 2¹⁰ = 11981113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11982107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9368 + ... + 10569.

It is an arithmetic number, because the mean of its divisors is an integer number (3000669).

Almost surely, 2^11982137 is an apocalyptic number.

It is an amenable number.

11982137 is a deficient number, since it is larger than the sum of its proper divisors (20539).

11982137 is an equidigital number, since it uses as much as digits as its factorization.

11982137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20538.

The product of its digits is 3024, while the sum is 32.

The square root of 11982137 is about 3461.5223529540. The cubic root of 11982137 is about 228.8291919267.

The spelling of 11982137 in words is "eleven million, nine hundred eighty-two thousand, one hundred thirty-seven".