654651313 has 4 divisors (see below), whose sum is σ = 654728308. Its totient is φ = 654574320.

The previous prime is 654651301. The next prime is 654651331. The reversal of 654651313 is 313156456.

654651313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 529368064 + 125283249 = 23008^2 + 11193^2 .

It is a cyclic number.

It is not a de Polignac number, because 654651313 - 2⁵ = 654651281 is a prime.

It is a super-2 number, since 2×654651313² = 857136683225247938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (654651373) 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, 23898 + ... + 43363.

It is an arithmetic number, because the mean of its divisors is an integer number (163682077).

Almost surely, 2^654651313 is an apocalyptic number.

It is an amenable number.

654651313 is a deficient number, since it is larger than the sum of its proper divisors (76995).

654651313 is an equidigital number, since it uses as much as digits as its factorization.

654651313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76994.

The product of its digits is 32400, while the sum is 34.

The square root of 654651313 is about 25586.1547130474. The cubic root of 654651313 is about 868.3004266503.

The spelling of 654651313 in words is "six hundred fifty-four million, six hundred fifty-one thousand, three hundred thirteen".