811490513 has 8 divisors (see below), whose sum is σ = 858923520. Its totient is φ = 764529840.

The previous prime is 811490509. The next prime is 811490521. The reversal of 811490513 is 315094118.

811490513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 811490513 - 2² = 811490509 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 811490513.

It is not an unprimeable number, because it can be changed into a prime (811495513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114545 + ... + 121422.

It is an arithmetic number, because the mean of its divisors is an integer number (107365440).

Almost surely, 2^811490513 is an apocalyptic number.

It is an amenable number.

811490513 is a deficient number, since it is larger than the sum of its proper divisors (47433007).

811490513 is a wasteful number, since it uses less digits than its factorization.

811490513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236167.

The product of its (nonzero) digits is 4320, while the sum is 32.

The square root of 811490513 is about 28486.6725505104. The cubic root of 811490513 is about 932.7411755584.

The spelling of 811490513 in words is "eight hundred eleven million, four hundred ninety thousand, five hundred thirteen".