185305072 has 10 divisors (see below), whose sum is σ = 359028608. Its totient is φ = 92652528.

The previous prime is 185305069. The next prime is 185305079. The reversal of 185305072 is 270503581.

185305072 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (185305079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5790768 + ... + 5790799.

Almost surely, 2^185305072 is an apocalyptic number.

It is an amenable number.

185305072 is a deficient number, since it is larger than the sum of its proper divisors (173723536).

185305072 is a wasteful number, since it uses less digits than its factorization.

185305072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11581575 (or 11581569 counting only the distinct ones).

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 185305072 is about 13612.6805589494. The cubic root of 185305072 is about 570.1149578335.

The spelling of 185305072 in words is "one hundred eighty-five million, three hundred five thousand, seventy-two".