188713849 has 2 divisors, whose sum is σ = 188713850. Its totient is φ = 188713848.

The previous prime is 188713807. The next prime is 188713853. The reversal of 188713849 is 948317881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 112466025 + 76247824 = 10605^2 + 8732^2 .

It is a cyclic number.

It is not a de Polignac number, because 188713849 - 2¹⁵ = 188681081 is a prime.

It is a super-2 number, since 2×188713849² = 71225833608789602, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (188713859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94356924 + 94356925.

It is an arithmetic number, because the mean of its divisors is an integer number (94356925).

Almost surely, 2^188713849 is an apocalyptic number.

It is an amenable number.

188713849 is a deficient number, since it is larger than the sum of its proper divisors (1).

188713849 is an equidigital number, since it uses as much as digits as its factorization.

188713849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 387072, while the sum is 49.

The square root of 188713849 is about 13737.3159314329. The cubic root of 188713849 is about 573.5895857014.

The spelling of 188713849 in words is "one hundred eighty-eight million, seven hundred thirteen thousand, eight hundred forty-nine".