651427313 has 4 divisors (see below), whose sum is σ = 651490980. Its totient is φ = 651363648.

The previous prime is 651427277. The next prime is 651427333. The reversal of 651427313 is 313724156.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 102556129 + 548871184 = 10127^2 + 23428^2 .

It is a cyclic number.

It is not a de Polignac number, because 651427313 - 2¹⁰ = 651426289 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 651427313.

It is not an unprimeable number, because it can be changed into a prime (651427333) 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, 12620 + ... + 38237.

It is an arithmetic number, because the mean of its divisors is an integer number (162872745).

Almost surely, 2^651427313 is an apocalyptic number.

It is an amenable number.

651427313 is a deficient number, since it is larger than the sum of its proper divisors (63667).

651427313 is a wasteful number, since it uses less digits than its factorization.

651427313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63666.

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

The square root of 651427313 is about 25523.0741291091. The cubic root of 651427313 is about 866.8726901886.

The spelling of 651427313 in words is "six hundred fifty-one million, four hundred twenty-seven thousand, three hundred thirteen".