188041213 has 2 divisors, whose sum is σ = 188041214. Its totient is φ = 188041212.

The previous prime is 188041207. The next prime is 188041237. The reversal of 188041213 is 312140881.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145033849 + 43007364 = 12043^2 + 6558^2 .

It is a cyclic number.

It is not a de Polignac number, because 188041213 - 2⁵ = 188041181 is a prime.

It is a super-2 number, since 2×188041213² = 70718995573022738, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (188041253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94020606 + 94020607.

It is an arithmetic number, because the mean of its divisors is an integer number (94020607).

Almost surely, 2^188041213 is an apocalyptic number.

It is an amenable number.

188041213 is a deficient number, since it is larger than the sum of its proper divisors (1).

188041213 is an equidigital number, since it uses as much as digits as its factorization.

188041213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 188041213 is about 13712.8120019200. The cubic root of 188041213 is about 572.9072893607.

The spelling of 188041213 in words is "one hundred eighty-eight million, forty-one thousand, two hundred thirteen".