801040501 has 2 divisors, whose sum is σ = 801040502. Its totient is φ = 801040500.

The previous prime is 801040447. The next prime is 801040519. The reversal of 801040501 is 105040108.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 702515025 + 98525476 = 26505^2 + 9926^2 .

It is a cyclic number.

It is not a de Polignac number, because 801040501 - 2¹⁵ = 801007733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (801040301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400520250 + 400520251.

It is an arithmetic number, because the mean of its divisors is an integer number (400520251).

Almost surely, 2^801040501 is an apocalyptic number.

It is an amenable number.

801040501 is a deficient number, since it is larger than the sum of its proper divisors (1).

801040501 is an equidigital number, since it uses as much as digits as its factorization.

801040501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 160, while the sum is 19.

The square root of 801040501 is about 28302.6589033610. The cubic root of 801040501 is about 928.7200571817.

Adding to 801040501 its reverse (105040108), we get a palindrome (906080609).

The spelling of 801040501 in words is "eight hundred one million, forty thousand, five hundred one".