187423313 has 24 divisors (see below), whose sum is σ = 238506240. Its totient is φ = 144144000.

The previous prime is 187423307. The next prime is 187423319. The reversal of 187423313 is 313324781.

It is an interprime number because it is at equal distance from previous prime (187423307) and next prime (187423319).

It is not a de Polignac number, because 187423313 - 2⁸ = 187423057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 187423313.

It is not an unprimeable number, because it can be changed into a prime (187423319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 65513 + ... + 68313.

It is an arithmetic number, because the mean of its divisors is an integer number (9937760).

Almost surely, 2^187423313 is an apocalyptic number.

It is an amenable number.

187423313 is a deficient number, since it is larger than the sum of its proper divisors (51082927).

187423313 is a wasteful number, since it uses less digits than its factorization.

187423313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2909 (or 2898 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 187423313 is about 13690.2634379328. The cubic root of 187423313 is about 572.2790797907.

The spelling of 187423313 in words is "one hundred eighty-seven million, four hundred twenty-three thousand, three hundred thirteen".