1325913829 has 2 divisors, whose sum is σ = 1325913830. Its totient is φ = 1325913828.

The previous prime is 1325913791. The next prime is 1325913847. The reversal of 1325913829 is 9283195231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1257057025 + 68856804 = 35455^2 + 8298^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325913829 - 2²¹ = 1323816677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1325913889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 662956914 + 662956915.

It is an arithmetic number, because the mean of its divisors is an integer number (662956915).

Almost surely, 2^1325913829 is an apocalyptic number.

It is an amenable number.

1325913829 is a deficient number, since it is larger than the sum of its proper divisors (1).

1325913829 is an equidigital number, since it uses as much as digits as its factorization.

1325913829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 43.

The square root of 1325913829 is about 36413.0996895348. The cubic root of 1325913829 is about 1098.5970624214.

The spelling of 1325913829 in words is "one billion, three hundred twenty-five million, nine hundred thirteen thousand, eight hundred twenty-nine".