501291201 has 16 divisors (see below), whose sum is σ = 674824896. Its totient is φ = 330991296.

The previous prime is 501291157. The next prime is 501291211. The reversal of 501291201 is 102192105.

It is not a de Polignac number, because 501291201 - 2¹¹ = 501289153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (501291211) 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 15 ways as a sum of consecutive naturals, for example, 145171 + ... + 148583.

It is an arithmetic number, because the mean of its divisors is an integer number (42176556).

Almost surely, 2^501291201 is an apocalyptic number.

It is an amenable number.

501291201 is a deficient number, since it is larger than the sum of its proper divisors (173533695).

501291201 is a wasteful number, since it uses less digits than its factorization.

501291201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3872.

The product of its (nonzero) digits is 180, while the sum is 21.

The square root of 501291201 is about 22389.5332912502. The cubic root of 501291201 is about 794.3831566538.

The spelling of 501291201 in words is "five hundred one million, two hundred ninety-one thousand, two hundred one".