313377187 has 2 divisors, whose sum is σ = 313377188. Its totient is φ = 313377186.

The previous prime is 313377107. The next prime is 313377193. The reversal of 313377187 is 781773313.

It is a strong prime.

It is an emirp because it is prime and its reverse (781773313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313377187 is a prime.

It is a super-2 number, since 2×313377187² = 196410522664065938, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313377107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156688593 + 156688594.

It is an arithmetic number, because the mean of its divisors is an integer number (156688594).

Almost surely, 2^313377187 is an apocalyptic number.

313377187 is a deficient number, since it is larger than the sum of its proper divisors (1).

313377187 is an equidigital number, since it uses as much as digits as its factorization.

313377187 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 313377187 is about 17702.4627382746. The cubic root of 313377187 is about 679.2387581338.

The spelling of 313377187 in words is "three hundred thirteen million, three hundred seventy-seven thousand, one hundred eighty-seven".