801513 has 6 divisors (see below), whose sum is σ = 1157754. Its totient is φ = 534336.

The previous prime is 801503. The next prime is 801517. The reversal of 801513 is 315108.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 522729 + 278784 = 723^2 + 528^2 .

It is not a de Polignac number, because 801513 - 2⁹ = 801001 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (801517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44520 + ... + 44537.

It is an arithmetic number, because the mean of its divisors is an integer number (192959).

2⁸⁰¹⁵¹³ is an apocalyptic number.

It is an amenable number.

801513 is a deficient number, since it is larger than the sum of its proper divisors (356241).

801513 is a wasteful number, since it uses less digits than its factorization.

801513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89063 (or 89060 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 801513 is about 895.2725841887. The cubic root of 801513 is about 92.8902625165.

The spelling of 801513 in words is "eight hundred one thousand, five hundred thirteen".