185055213 has 24 divisors (see below), whose sum is σ = 296290560. Its totient is φ = 102332160.

The previous prime is 185055203. The next prime is 185055239. The reversal of 185055213 is 312550581.

It is not a de Polignac number, because 185055213 - 2⁴ = 185055197 is a prime.

It is the 13604-th Hogben number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185055203) by changing a digit.

It is a nontrivial repunit in base 13603.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15748 + ... + 24861.

It is an arithmetic number, because the mean of its divisors is an integer number (12345440).

Almost surely, 2^185055213 is an apocalyptic number.

It is an amenable number.

185055213 is a deficient number, since it is larger than the sum of its proper divisors (111235347).

185055213 is a wasteful number, since it uses less digits than its factorization.

185055213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40657 (or 40650 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

The square root of 185055213 is about 13603.5000275664. The cubic root of 185055213 is about 569.8586014300.

The spelling of 185055213 in words is "one hundred eighty-five million, fifty-five thousand, two hundred thirteen".