462121813 has 4 divisors (see below), whose sum is σ = 471954240. Its totient is φ = 452289388.

The previous prime is 462121801. The next prime is 462121837. The reversal of 462121813 is 318121264.

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 a cyclic number.

It is not a de Polignac number, because 462121813 - 2²¹ = 460024661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (462121843) 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 3 ways as a sum of consecutive naturals, for example, 4916143 + ... + 4916236.

It is an arithmetic number, because the mean of its divisors is an integer number (117988560).

Almost surely, 2^462121813 is an apocalyptic number.

It is an amenable number.

462121813 is a deficient number, since it is larger than the sum of its proper divisors (9832427).

462121813 is an equidigital number, since it uses as much as digits as its factorization.

462121813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9832426.

The product of its digits is 2304, while the sum is 28.

The square root of 462121813 is about 21497.0187002756. The cubic root of 462121813 is about 773.1293422313.

The spelling of 462121813 in words is "four hundred sixty-two million, one hundred twenty-one thousand, eight hundred thirteen".