188264873 has 2 divisors, whose sum is σ = 188264874. Its totient is φ = 188264872.

The previous prime is 188264831. The next prime is 188264911. The reversal of 188264873 is 378462881.

188264873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159567424 + 28697449 = 12632^2 + 5357^2 .

It is a cyclic number.

It is not a de Polignac number, because 188264873 - 2¹⁸ = 188002729 is a prime.

It is a super-2 number, since 2×188264873² = 70887324811412258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (188264803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94132436 + 94132437.

It is an arithmetic number, because the mean of its divisors is an integer number (94132437).

Almost surely, 2^188264873 is an apocalyptic number.

It is an amenable number.

188264873 is a deficient number, since it is larger than the sum of its proper divisors (1).

188264873 is an equidigital number, since it uses as much as digits as its factorization.

188264873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 516096, while the sum is 47.

The square root of 188264873 is about 13720.9647255577. The cubic root of 188264873 is about 573.1343418477.

The spelling of 188264873 in words is "one hundred eighty-eight million, two hundred sixty-four thousand, eight hundred seventy-three".