187064413 has 8 divisors (see below), whose sum is σ = 204898680. Its totient is φ = 169989120.

The previous prime is 187064357. The next prime is 187064417. The reversal of 187064413 is 314460781.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9721924 + 177342489 = 3118^2 + 13317^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-187064413 is a prime.

It is a super-2 number, since 2×187064413² = 69986189222069138, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187064417) 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 7 ways as a sum of consecutive naturals, for example, 189228 + ... + 190213.

It is an arithmetic number, because the mean of its divisors is an integer number (25612335).

Almost surely, 2^187064413 is an apocalyptic number.

It is an amenable number.

187064413 is a deficient number, since it is larger than the sum of its proper divisors (17834267).

187064413 is a wasteful number, since it uses less digits than its factorization.

187064413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379487.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 187064413 is about 13677.1493009326. The cubic root of 187064413 is about 571.9135574867.

The spelling of 187064413 in words is "one hundred eighty-seven million, sixty-four thousand, four hundred thirteen".