801501 has 4 divisors (see below), whose sum is σ = 1068672. Its totient is φ = 534332.

The previous prime is 801487. The next prime is 801503. The reversal of 801501 is 105108.

It is a happy number.

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 801501 - 2⁵ = 801469 is a prime.

It is a D-number.

801501 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (801503) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133581 + ... + 133586.

It is an arithmetic number, because the mean of its divisors is an integer number (267168).

2⁸⁰¹⁵⁰¹ is an apocalyptic number.

It is an amenable number.

801501 is a deficient number, since it is larger than the sum of its proper divisors (267171).

801501 is a wasteful number, since it uses less digits than its factorization.

801501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267170.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 801501 is about 895.2658822942. The cubic root of 801501 is about 92.8897989396.

Adding to 801501 its reverse (105108), we get a palindrome (906609).

The spelling of 801501 in words is "eight hundred one thousand, five hundred one".