11975745 has 8 divisors (see below), whose sum is σ = 19161216. Its totient is φ = 6387056.

The previous prime is 11975713. The next prime is 11975759. The reversal of 11975745 is 54757911.

11975745 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11975745 - 2⁵ = 11975713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399177 + ... + 399206.

It is an arithmetic number, because the mean of its divisors is an integer number (2395152).

Almost surely, 2^11975745 is an apocalyptic number.

11975745 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11975745 is a deficient number, since it is larger than the sum of its proper divisors (7185471).

11975745 is an equidigital number, since it uses as much as digits as its factorization.

11975745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798391.

The product of its digits is 44100, while the sum is 39.

The square root of 11975745 is about 3460.5989366004. The cubic root of 11975745 is about 228.7884942235.

It can be divided in two parts, 11975 and 745, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 11975745 in words is "eleven million, nine hundred seventy-five thousand, seven hundred forty-five".