1245828329 has 2 divisors, whose sum is σ = 1245828330. Its totient is φ = 1245828328.

The previous prime is 1245828307. The next prime is 1245828359. The reversal of 1245828329 is 9238285421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1099055104 + 146773225 = 33152^2 + 12115^2 .

It is a cyclic number.

It is not a de Polignac number, because 1245828329 - 2²⁸ = 977392873 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1245828329.

It is not a weakly prime, because it can be changed into another prime (1245828359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 622914164 + 622914165.

It is an arithmetic number, because the mean of its divisors is an integer number (622914165).

Almost surely, 2^1245828329 is an apocalyptic number.

It is an amenable number.

1245828329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1245828329 is an equidigital number, since it uses as much as digits as its factorization.

1245828329 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 44.

The square root of 1245828329 is about 35296.2934172981. The cubic root of 1245828329 is about 1076.0176637487.

The spelling of 1245828329 in words is "one billion, two hundred forty-five million, eight hundred twenty-eight thousand, three hundred twenty-nine".