1325236109 has 2 divisors, whose sum is σ = 1325236110. Its totient is φ = 1325236108.

The previous prime is 1325236097. The next prime is 1325236127. The reversal of 1325236109 is 9016325231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1314280009 + 10956100 = 36253^2 + 3310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325236109 - 2⁸ = 1325235853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325236169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662618054 + 662618055.

It is an arithmetic number, because the mean of its divisors is an integer number (662618055).

Almost surely, 2^1325236109 is an apocalyptic number.

It is an amenable number.

1325236109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325236109 is an equidigital number, since it uses as much as digits as its factorization.

1325236109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 1325236109 is about 36403.7925084736. The cubic root of 1325236109 is about 1098.4098536515.

The spelling of 1325236109 in words is "one billion, three hundred twenty-five million, two hundred thirty-six thousand, one hundred nine".