502309091 has 2 divisors, whose sum is σ = 502309092. Its totient is φ = 502309090.

The previous prime is 502309043. The next prime is 502309109. The reversal of 502309091 is 190903205.

Together with next prime (502309109) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 502309091 - 2¹⁰ = 502308067 is a prime.

It is not a weakly prime, because it can be changed into another prime (502309001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 251154545 + 251154546.

It is an arithmetic number, because the mean of its divisors is an integer number (251154546).

Almost surely, 2^502309091 is an apocalyptic number.

502309091 is a deficient number, since it is larger than the sum of its proper divisors (1).

502309091 is an equidigital number, since it uses as much as digits as its factorization.

502309091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 502309091 is about 22412.2531442066. The cubic root of 502309091 is about 794.9204677634.

The spelling of 502309091 in words is "five hundred two million, three hundred nine thousand, ninety-one".