188061313 has 4 divisors (see below), whose sum is σ = 205157808. Its totient is φ = 170964820.

The previous prime is 188061311. The next prime is 188061319. The reversal of 188061313 is 313160881.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 188061313 - 2¹ = 188061311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (188061311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8548231 + ... + 8548252.

It is an arithmetic number, because the mean of its divisors is an integer number (51289452).

Almost surely, 2^188061313 is an apocalyptic number.

It is an amenable number.

188061313 is a deficient number, since it is larger than the sum of its proper divisors (17096495).

188061313 is a wasteful number, since it uses less digits than its factorization.

188061313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17096494.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 188061313 is about 13713.5448735912. The cubic root of 188061313 is about 572.9277015992.

The spelling of 188061313 in words is "one hundred eighty-eight million, sixty-one thousand, three hundred thirteen".