313490881 has 8 divisors (see below), whose sum is σ = 346320000. Its totient is φ = 281383440.

The previous prime is 313490833. The next prime is 313490887. The reversal of 313490881 is 188094313.

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

It is a cyclic number.

It is not a de Polignac number, because 313490881 - 2⁷ = 313490753 is a prime.

It is a super-2 number, since 2×313490881² = 196553064940312322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 313490881.

It is not an unprimeable number, because it can be changed into a prime (313490887) 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, 179506 + ... + 181243.

It is an arithmetic number, because the mean of its divisors is an integer number (43290000).

Almost surely, 2^313490881 is an apocalyptic number.

It is an amenable number.

313490881 is a deficient number, since it is larger than the sum of its proper divisors (32829119).

313490881 is a wasteful number, since it uses less digits than its factorization.

313490881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360839.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 313490881 is about 17705.6736951747. The cubic root of 313490881 is about 679.3208913556.

It can be divided in two parts, 313 and 490881, that added together give a palindrome (491194).

The spelling of 313490881 in words is "three hundred thirteen million, four hundred ninety thousand, eight hundred eighty-one".