313781007 has 8 divisors (see below), whose sum is σ = 418456576. Its totient is φ = 209146392.

The previous prime is 313781003. The next prime is 313781047. The reversal of 313781007 is 700187313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313781007 - 2² = 313781003 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313781003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24018 + ... + 34704.

It is an arithmetic number, because the mean of its divisors is an integer number (52307072).

Almost surely, 2^313781007 is an apocalyptic number.

313781007 is a deficient number, since it is larger than the sum of its proper divisors (104675569).

313781007 is a wasteful number, since it uses less digits than its factorization.

313781007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20477.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 313781007 is about 17713.8648239169. The cubic root of 313781007 is about 679.5303901495.

It can be divided in two parts, 31378 and 1007, that added together give a triangular number (32385 = T₂₅₄).

The spelling of 313781007 in words is "three hundred thirteen million, seven hundred eighty-one thousand, seven".