501230401 has 4 divisors (see below), whose sum is σ = 572834752. Its totient is φ = 429626052.

The previous prime is 501230383. The next prime is 501230447. The reversal of 501230401 is 104032105.

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 501230401 - 2⁵ = 501230369 is a prime.

It is not an unprimeable number, because it can be changed into a prime (501230491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35802165 + ... + 35802178.

It is an arithmetic number, because the mean of its divisors is an integer number (143208688).

Almost surely, 2^501230401 is an apocalyptic number.

It is an amenable number.

501230401 is a deficient number, since it is larger than the sum of its proper divisors (71604351).

501230401 is an equidigital number, since it uses as much as digits as its factorization.

501230401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71604350.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 501230401 is about 22388.1754727803. The cubic root of 501230401 is about 794.3510392946.

Adding to 501230401 its reverse (104032105), we get a palindrome (605262506).

The spelling of 501230401 in words is "five hundred one million, two hundred thirty thousand, four hundred one".