187373713 has 2 divisors, whose sum is σ = 187373714. Its totient is φ = 187373712.

The previous prime is 187373671. The next prime is 187373717. The reversal of 187373713 is 317373781.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98863249 + 88510464 = 9943^2 + 9408^2 .

It is an emirp because it is prime and its reverse (317373781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 187373713 - 2²¹ = 185276561 is a prime.

It is not a weakly prime, because it can be changed into another prime (187373717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 93686856 + 93686857.

It is an arithmetic number, because the mean of its divisors is an integer number (93686857).

Almost surely, 2^187373713 is an apocalyptic number.

It is an amenable number.

187373713 is a deficient number, since it is larger than the sum of its proper divisors (1).

187373713 is an equidigital number, since it uses as much as digits as its factorization.

187373713 is an evil number, because the sum of its binary digits is even.

The product of its digits is 74088, while the sum is 40.

The square root of 187373713 is about 13688.4518116550. The cubic root of 187373713 is about 572.2285923918.

The spelling of 187373713 in words is "one hundred eighty-seven million, three hundred seventy-three thousand, seven hundred thirteen".