11642545 has 4 divisors (see below), whose sum is σ = 13971060. Its totient is φ = 9314032.

The previous prime is 11642537. The next prime is 11642549. The reversal of 11642545 is 54524611.

11642545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54524611 = 29 ⋅1880159.

It can be written as a sum of positive squares in 2 ways, for example, as 1682209 + 9960336 = 1297^2 + 3156^2 .

It is a cyclic number.

It is not a de Polignac number, because 11642545 - 2³ = 11642537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11642549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1164250 + ... + 1164259.

It is an arithmetic number, because the mean of its divisors is an integer number (3492765).

Almost surely, 2^11642545 is an apocalyptic number.

It is an amenable number.

11642545 is a deficient number, since it is larger than the sum of its proper divisors (2328515).

11642545 is an equidigital number, since it uses as much as digits as its factorization.

11642545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328514.

The product of its digits is 4800, while the sum is 28.

The square root of 11642545 is about 3412.1173778169. The cubic root of 11642545 is about 226.6466521640.

The spelling of 11642545 in words is "eleven million, six hundred forty-two thousand, five hundred forty-five".