1345447325 has 6 divisors (see below), whose sum is σ = 1668354714. Its totient is φ = 1076357840.

The previous prime is 1345447319. The next prime is 1345447331. The reversal of 1345447325 is 5237445431.

It is an interprime number because it is at equal distance from previous prime (1345447319) and next prime (1345447331).

It can be written as a sum of positive squares in 3 ways, for example, as 97732996 + 1247714329 = 9886^2 + 35323^2 .

It is not a de Polignac number, because 1345447325 - 2⁴ = 1345447309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26908922 + ... + 26908971.

It is an arithmetic number, because the mean of its divisors is an integer number (278059119).

Almost surely, 2^1345447325 is an apocalyptic number.

It is an amenable number.

1345447325 is a deficient number, since it is larger than the sum of its proper divisors (322907389).

1345447325 is an equidigital number, since it uses as much as digits as its factorization.

1345447325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53817903 (or 53817898 counting only the distinct ones).

The product of its digits is 201600, while the sum is 38.

The square root of 1345447325 is about 36680.3397612399. The cubic root of 1345447325 is about 1103.9656653385.

The spelling of 1345447325 in words is "one billion, three hundred forty-five million, four hundred forty-seven thousand, three hundred twenty-five".