187053313 has 4 divisors (see below), whose sum is σ = 188905428. Its totient is φ = 185201200.

The previous prime is 187053301. The next prime is 187053323. The reversal of 187053313 is 313350781.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 166332609 + 20720704 = 12897^2 + 4552^2 .

It is a cyclic number.

It is not a de Polignac number, because 187053313 - 2⁵ = 187053281 is a prime.

It is a super-4 number, since 4×187053313⁴ (a number of 34 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187053323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 925906 + ... + 926107.

It is an arithmetic number, because the mean of its divisors is an integer number (47226357).

Almost surely, 2^187053313 is an apocalyptic number.

It is an amenable number.

187053313 is a deficient number, since it is larger than the sum of its proper divisors (1852115).

187053313 is a wasteful number, since it uses less digits than its factorization.

187053313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852114.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 187053313 is about 13676.7435085988. The cubic root of 187053313 is about 571.9022452227.

The spelling of 187053313 in words is "one hundred eighty-seven million, fifty-three thousand, three hundred thirteen".