313551841849 has 9 divisors (see below), whose sum is σ = 314732732013. Its totient is φ = 312375372192.

The previous prime is 313551841843. The next prime is 313551841901. The reversal of 313551841849 is 948148155313.

The square root of 313551841849 is 559957.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 7667629225 + 305884212624 = 87565^2 + 553068^2 .

It is not a de Polignac number, because 313551841849 - 2⁷ = 313551841721 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313551841796 and 313551841805.

It is not an unprimeable number, because it can be changed into a prime (313551841843) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 175265647 + ... + 175267435.

It is an arithmetic number, because the mean of its divisors is an integer number (34970303557).

Almost surely, 2^313551841849 is an apocalyptic number.

313551841849 is the 559957-th square number.

313551841849 is the 279979-th centered octagonal number.

It is an amenable number.

313551841849 is a deficient number, since it is larger than the sum of its proper divisors (1180890164).

313551841849 is an frugal number, since it uses more digits than its factorization.

313551841849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4204 (or 2102 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 52.

The spelling of 313551841849 in words is "three hundred thirteen billion, five hundred fifty-one million, eight hundred forty-one thousand, eight hundred forty-nine".