313780253 has 4 divisors (see below), whose sum is σ = 313830300. Its totient is φ = 313730208.

The previous prime is 313780249. The next prime is 313780267. The reversal of 313780253 is 352087313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 352087313 = 101 ⋅3486013.

It can be written as a sum of positive squares in 2 ways, for example, as 123698884 + 190081369 = 11122^2 + 13787^2 .

It is a cyclic number.

It is not a de Polignac number, because 313780253 - 2² = 313780249 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 (313750253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14000 + ... + 28697.

It is an arithmetic number, because the mean of its divisors is an integer number (78457575).

Almost surely, 2^313780253 is an apocalyptic number.

It is an amenable number.

313780253 is a deficient number, since it is larger than the sum of its proper divisors (50047).

313780253 is an equidigital number, since it uses as much as digits as its factorization.

313780253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50046.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 313780253 is about 17713.8435411404. The cubic root of 313780253 is about 679.5298458566.

The spelling of 313780253 in words is "three hundred thirteen million, seven hundred eighty thousand, two hundred fifty-three".