11946975 has 12 divisors (see below), whose sum is σ = 19752456. Its totient is φ = 6371680.

The previous prime is 11946973. The next prime is 11946983. The reversal of 11946975 is 57964911.

It is not a de Polignac number, because 11946975 - 2¹ = 11946973 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11946973) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79572 + ... + 79721.

It is an arithmetic number, because the mean of its divisors is an integer number (1646038).

Almost surely, 2^11946975 is an apocalyptic number.

11946975 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11946975 is a deficient number, since it is larger than the sum of its proper divisors (7805481).

11946975 is a wasteful number, since it uses less digits than its factorization.

11946975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159306 (or 159301 counting only the distinct ones).

The product of its digits is 68040, while the sum is 42.

The square root of 11946975 is about 3456.4396421752. The cubic root of 11946975 is about 228.6051368627.

It can be divided in two parts, 11946 and 975, that added together give a palindrome (12921).

The spelling of 11946975 in words is "eleven million, nine hundred forty-six thousand, nine hundred seventy-five".