11988951 has 8 divisors (see below), whose sum is σ = 17214960. Its totient is φ = 7377792.

The previous prime is 11988941. The next prime is 11988953. The reversal of 11988951 is 15988911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11988951 - 2⁶ = 11988887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11988953) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153666 + ... + 153743.

It is an arithmetic number, because the mean of its divisors is an integer number (2151870).

Almost surely, 2^11988951 is an apocalyptic number.

11988951 is a deficient number, since it is larger than the sum of its proper divisors (5226009).

11988951 is a wasteful number, since it uses less digits than its factorization.

11988951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307425.

The product of its digits is 25920, while the sum is 42.

The square root of 11988951 is about 3462.5064620878. The cubic root of 11988951 is about 228.8725605578.

The spelling of 11988951 in words is "eleven million, nine hundred eighty-eight thousand, nine hundred fifty-one".