501434239 has 2 divisors, whose sum is σ = 501434240. Its totient is φ = 501434238.

The previous prime is 501434233. The next prime is 501434303. The reversal of 501434239 is 932434105.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 501434239 - 2¹³ = 501426047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 501434239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (501434233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250717119 + 250717120.

It is an arithmetic number, because the mean of its divisors is an integer number (250717120).

Almost surely, 2^501434239 is an apocalyptic number.

501434239 is a deficient number, since it is larger than the sum of its proper divisors (1).

501434239 is an equidigital number, since it uses as much as digits as its factorization.

501434239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 501434239 is about 22392.7273685007. The cubic root of 501434239 is about 794.4587056708.

The spelling of 501434239 in words is "five hundred one million, four hundred thirty-four thousand, two hundred thirty-nine".