11611945 has 8 divisors (see below), whose sum is σ = 14667840. Its totient is φ = 8800560.

The previous prime is 11611939. The next prime is 11611981. The reversal of 11611945 is 54911611.

11611945 is digitally balanced in base 2, because in such base 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 not a de Polignac number, because 11611945 - 2⁹ = 11611433 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, 61021 + ... + 61210.

It is an arithmetic number, because the mean of its divisors is an integer number (1833480).

Almost surely, 2^11611945 is an apocalyptic number.

It is an amenable number.

11611945 is a deficient number, since it is larger than the sum of its proper divisors (3055895).

11611945 is a wasteful number, since it uses less digits than its factorization.

11611945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122255.

The product of its digits is 1080, while the sum is 28.

The square root of 11611945 is about 3407.6304083630. The cubic root of 11611945 is about 226.4479134713.

The spelling of 11611945 in words is "eleven million, six hundred eleven thousand, nine hundred forty-five".