451985313 has 8 divisors (see below), whose sum is σ = 649004608. Its totient is φ = 278144784.

The previous prime is 451985311. The next prime is 451985389. The reversal of 451985313 is 313589154.

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

It is not a de Polignac number, because 451985313 - 2¹ = 451985311 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 11589367 = 451985313 / (4 + 5 + 1 + 9 + 8 + 5 + 3 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451985311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5794645 + ... + 5794722.

It is an arithmetic number, because the mean of its divisors is an integer number (81125576).

Almost surely, 2^451985313 is an apocalyptic number.

It is an amenable number.

451985313 is a deficient number, since it is larger than the sum of its proper divisors (197019295).

451985313 is a wasteful number, since it uses less digits than its factorization.

451985313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11589383.

The product of its digits is 64800, while the sum is 39.

The square root of 451985313 is about 21259.9462134785. The cubic root of 451985313 is about 767.4347155227.

The spelling of 451985313 in words is "four hundred fifty-one million, nine hundred eighty-five thousand, three hundred thirteen".