501346121 has 2 divisors, whose sum is σ = 501346122. Its totient is φ = 501346120.

The previous prime is 501346093. The next prime is 501346169. The reversal of 501346121 is 121643105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 498896896 + 2449225 = 22336^2 + 1565^2 .

It is a cyclic number.

It is not a de Polignac number, because 501346121 - 2⁶ = 501346057 is a prime.

It is not a weakly prime, because it can be changed into another prime (501346621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250673060 + 250673061.

It is an arithmetic number, because the mean of its divisors is an integer number (250673061).

Almost surely, 2^501346121 is an apocalyptic number.

It is an amenable number.

501346121 is a deficient number, since it is larger than the sum of its proper divisors (1).

501346121 is an equidigital number, since it uses as much as digits as its factorization.

501346121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 501346121 is about 22390.7597236003. The cubic root of 501346121 is about 794.4121656941.

Adding to 501346121 its reverse (121643105), we get a palindrome (622989226).

The spelling of 501346121 in words is "five hundred one million, three hundred forty-six thousand, one hundred twenty-one".