11612905 has 12 divisors (see below), whose sum is σ = 14467140. Its totient is φ = 8938272.

The previous prime is 11612899. The next prime is 11612927. The reversal of 11612905 is 50921611.

11612905 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5125696 + 6487209 = 2264^2 + 2547^2 .

It is not a de Polignac number, because 11612905 - 2⁵ = 11612873 is a prime.

It is a super-3 number, since 3×11612905³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11612905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40894 + ... + 41176.

It is an arithmetic number, because the mean of its divisors is an integer number (1205595).

Almost surely, 2^11612905 is an apocalyptic number.

It is an amenable number.

11612905 is a deficient number, since it is larger than the sum of its proper divisors (2854235).

11612905 is an frugal number, since it uses more digits than its factorization.

11612905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 317 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 11612905 is about 3407.7712657982. The cubic root of 11612905 is about 226.4541537123.

The spelling of 11612905 in words is "eleven million, six hundred twelve thousand, nine hundred five".