1345045225 has 12 divisors (see below), whose sum is σ = 1671148620. Its totient is φ = 1073912000.

The previous prime is 1345045157. The next prime is 1345045249. The reversal of 1345045225 is 5225405431.

It can be written as a sum of positive squares in 6 ways, for example, as 29387241 + 1315657984 = 5421^2 + 36272^2 .

It is not a de Polignac number, because 1345045225 - 2¹⁵ = 1345012457 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40126 + ... + 65575.

It is an arithmetic number, because the mean of its divisors is an integer number (139262385).

Almost surely, 2^1345045225 is an apocalyptic number.

It is an amenable number.

1345045225 is a deficient number, since it is larger than the sum of its proper divisors (326103395).

1345045225 is a wasteful number, since it uses less digits than its factorization.

1345045225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106220 (or 106215 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1345045225 is about 36674.8582137682. The cubic root of 1345045225 is about 1103.8556774272.

The spelling of 1345045225 in words is "one billion, three hundred forty-five million, forty-five thousand, two hundred twenty-five".