188875513 has 2 divisors, whose sum is σ = 188875514. Its totient is φ = 188875512.

The previous prime is 188875501. The next prime is 188875537. The reversal of 188875513 is 315578881.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112190464 + 76685049 = 10592^2 + 8757^2 .

It is an emirp because it is prime and its reverse (315578881) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188875513 is a prime.

It is a super-2 number, since 2×188875513² = 71347918822026338, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (188875573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94437756 + 94437757.

It is an arithmetic number, because the mean of its divisors is an integer number (94437757).

Almost surely, 2^188875513 is an apocalyptic number.

It is an amenable number.

188875513 is a deficient number, since it is larger than the sum of its proper divisors (1).

188875513 is an equidigital number, since it uses as much as digits as its factorization.

188875513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 268800, while the sum is 46.

The square root of 188875513 is about 13743.1987906746. The cubic root of 188875513 is about 573.7533297699.

The spelling of 188875513 in words is "one hundred eighty-eight million, eight hundred seventy-five thousand, five hundred thirteen".