188076145 has 8 divisors (see below), whose sum is σ = 225809640. Its totient is φ = 150382080.

The previous prime is 188076139. The next prime is 188076149. The reversal of 188076145 is 541670881.

188076145 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 14653584 + 173422561 = 3828^2 + 13169^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 188076145 - 2²³ = 179687537 is a prime.

It is a super-2 number, since 2×188076145² = 70745272636122050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 188076098 and 188076107.

It is not an unprimeable number, because it can be changed into a prime (188076149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1921 + ... + 19489.

It is an arithmetic number, because the mean of its divisors is an integer number (28226205).

Almost surely, 2^188076145 is an apocalyptic number.

It is an amenable number.

188076145 is a deficient number, since it is larger than the sum of its proper divisors (37733495).

188076145 is a wasteful number, since it uses less digits than its factorization.

188076145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19715.

The product of its (nonzero) digits is 53760, while the sum is 40.

The square root of 188076145 is about 13714.0856421418. The cubic root of 188076145 is about 572.9427630706.

The spelling of 188076145 in words is "one hundred eighty-eight million, seventy-six thousand, one hundred forty-five".