11573945 has 16 divisors (see below), whose sum is σ = 15258240. Its totient is φ = 8388864.

The previous prime is 11573941. The next prime is 11573951. The reversal of 11573945 is 54937511.

11573945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11573945 - 2² = 11573941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11573941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 464 + ... + 4833.

It is an arithmetic number, because the mean of its divisors is an integer number (953640).

Almost surely, 2^11573945 is an apocalyptic number.

It is an amenable number.

11573945 is a deficient number, since it is larger than the sum of its proper divisors (3684295).

11573945 is a wasteful number, since it uses less digits than its factorization.

11573945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5344.

The product of its digits is 18900, while the sum is 35.

The square root of 11573945 is about 3402.0501172087. The cubic root of 11573945 is about 226.2006271802.

The spelling of 11573945 in words is "eleven million, five hundred seventy-three thousand, nine hundred forty-five".