11988751 has 2 divisors, whose sum is σ = 11988752. Its totient is φ = 11988750.

The previous prime is 11988737. The next prime is 11988799. The reversal of 11988751 is 15788911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11988751 - 2⁵ = 11988719 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11988721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5994375 + 5994376.

It is an arithmetic number, because the mean of its divisors is an integer number (5994376).

Almost surely, 2^11988751 is an apocalyptic number.

11988751 is a deficient number, since it is larger than the sum of its proper divisors (1).

11988751 is an equidigital number, since it uses as much as digits as its factorization.

11988751 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20160, while the sum is 40.

The square root of 11988751 is about 3462.4775811549. The cubic root of 11988751 is about 228.8712878647.

The spelling of 11988751 in words is "eleven million, nine hundred eighty-eight thousand, seven hundred fifty-one".