1325243519 has 2 divisors, whose sum is σ = 1325243520. Its totient is φ = 1325243518.

The previous prime is 1325243501. The next prime is 1325243539. The reversal of 1325243519 is 9153425231.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1325243519 - 2¹⁶ = 1325177983 is a prime.

It is a super-2 number, since 2×1325243519² = 3512540769303006722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325243539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662621759 + 662621760.

It is an arithmetic number, because the mean of its divisors is an integer number (662621760).

Almost surely, 2^1325243519 is an apocalyptic number.

1325243519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325243519 is an equidigital number, since it uses as much as digits as its factorization.

1325243519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 35.

The square root of 1325243519 is about 36403.8942834417. The cubic root of 1325243519 is about 1098.4119008846.

The spelling of 1325243519 in words is "one billion, three hundred twenty-five million, two hundred forty-three thousand, five hundred nineteen".