2451021313 has 8 divisors (see below), whose sum is σ = 2643435648. Its totient is φ = 2259160464.

The previous prime is 2451021311. The next prime is 2451021319. The reversal of 2451021313 is 3131201542.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2451021313 - 2¹ = 2451021311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2451021311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129145 + ... + 146902.

It is an arithmetic number, because the mean of its divisors is an integer number (330429456).

Almost surely, 2^2451021313 is an apocalyptic number.

It is an amenable number.

2451021313 is a deficient number, since it is larger than the sum of its proper divisors (192414335).

2451021313 is a wasteful number, since it uses less digits than its factorization.

2451021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276743.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2451021313 is about 49507.7904273661. The cubic root of 2451021313 is about 1348.2870479189.

Adding to 2451021313 its reverse (3131201542), we get a palindrome (5582222855).

The spelling of 2451021313 in words is "two billion, four hundred fifty-one million, twenty-one thousand, three hundred thirteen".