501135709 has 2 divisors, whose sum is σ = 501135710. Its totient is φ = 501135708.

The previous prime is 501135703. The next prime is 501135721. The reversal of 501135709 is 907531105.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 491863684 + 9272025 = 22178^2 + 3045^2 .

It is a cyclic number.

It is not a de Polignac number, because 501135709 - 2²⁷ = 366917981 is a prime.

It is a super-2 number, since 2×501135709² = 502273997669865362, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501135703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250567854 + 250567855.

It is an arithmetic number, because the mean of its divisors is an integer number (250567855).

Almost surely, 2^501135709 is an apocalyptic number.

It is an amenable number.

501135709 is a deficient number, since it is larger than the sum of its proper divisors (1).

501135709 is an equidigital number, since it uses as much as digits as its factorization.

501135709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4725, while the sum is 31.

The square root of 501135709 is about 22386.0605958261. The cubic root of 501135709 is about 794.3010134478.

The spelling of 501135709 in words is "five hundred one million, one hundred thirty-five thousand, seven hundred nine".