187274713 has 4 divisors (see below), whose sum is σ = 187434468. Its totient is φ = 187114960.

The previous prime is 187274707. The next prime is 187274729. The reversal of 187274713 is 317472781.

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 181360089 + 5914624 = 13467^2 + 2432^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-187274713 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (187274513) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78106 + ... + 80467.

It is an arithmetic number, because the mean of its divisors is an integer number (46858617).

Almost surely, 2^187274713 is an apocalyptic number.

It is an amenable number.

187274713 is a deficient number, since it is larger than the sum of its proper divisors (159755).

187274713 is a wasteful number, since it uses less digits than its factorization.

187274713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159754.

The product of its digits is 65856, while the sum is 40.

The square root of 187274713 is about 13684.8351469793. The cubic root of 187274713 is about 572.1277945266.

The spelling of 187274713 in words is "one hundred eighty-seven million, two hundred seventy-four thousand, seven hundred thirteen".