187313373 has 12 divisors (see below), whose sum is σ = 291376540. Its totient is φ = 115269696.

The previous prime is 187313359. The next prime is 187313389. The reversal of 187313373 is 373313781.

It can be written as a sum of positive squares in 2 ways, for example, as 76685049 + 110628324 = 8757^2 + 10518^2 .

It is not a de Polignac number, because 187313373 - 2⁹ = 187312861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (187313323) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 800368 + ... + 800601.

Almost surely, 2^187313373 is an apocalyptic number.

187313373 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

187313373 is a deficient number, since it is larger than the sum of its proper divisors (104063167).

187313373 is a wasteful number, since it uses less digits than its factorization.

187313373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600988 (or 1600985 counting only the distinct ones).

The product of its digits is 31752, while the sum is 36.

The square root of 187313373 is about 13686.2475865374. The cubic root of 187313373 is about 572.1671608285.

The spelling of 187313373 in words is "one hundred eighty-seven million, three hundred thirteen thousand, three hundred seventy-three".