313720653 has 4 divisors (see below), whose sum is σ = 418294208. Its totient is φ = 209147100.

The previous prime is 313720577. The next prime is 313720663. The reversal of 313720653 is 356027313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 313720653 - 2¹³ = 313712461 is a prime.

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 313720653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313720663) 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, 52286773 + ... + 52286778.

It is an arithmetic number, because the mean of its divisors is an integer number (104573552).

Almost surely, 2^313720653 is an apocalyptic number.

It is an amenable number.

313720653 is a deficient number, since it is larger than the sum of its proper divisors (104573555).

313720653 is a wasteful number, since it uses less digits than its factorization.

313720653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104573554.

The product of its (nonzero) digits is 11340, while the sum is 30.

The square root of 313720653 is about 17712.1611611909. The cubic root of 313720653 is about 679.4868194149.

Adding to 313720653 its reverse (356027313), we get a palindrome (669747966).

The spelling of 313720653 in words is "three hundred thirteen million, seven hundred twenty thousand, six hundred fifty-three".