1345457125 has 8 divisors (see below), whose sum is σ = 1679130648. Its totient is φ = 1076365600.

The previous prime is 1345457123. The next prime is 1345457131. The reversal of 1345457125 is 5217545431.

It can be written as a sum of positive squares in 4 ways, for example, as 40947201 + 1304509924 = 6399^2 + 36118^2 .

It is not a de Polignac number, because 1345457125 - 2¹ = 1345457123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345457123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5381704 + ... + 5381953.

It is an arithmetic number, because the mean of its divisors is an integer number (209891331).

Almost surely, 2^1345457125 is an apocalyptic number.

It is an amenable number.

1345457125 is a deficient number, since it is larger than the sum of its proper divisors (333673523).

1345457125 is an equidigital number, since it uses as much as digits as its factorization.

1345457125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10763672 (or 10763662 counting only the distinct ones).

The product of its digits is 84000, while the sum is 37.

The square root of 1345457125 is about 36680.4733475456. The cubic root of 1345457125 is about 1103.9683456954.

The spelling of 1345457125 in words is "one billion, three hundred forty-five million, four hundred fifty-seven thousand, one hundred twenty-five".