1345880425 has 6 divisors (see below), whose sum is σ = 1668891758. Its totient is φ = 1076704320.

The previous prime is 1345880423. The next prime is 1345880453. The reversal of 1345880425 is 5240885431.

It can be written as a sum of positive squares in 3 ways, for example, as 158457744 + 1187422681 = 12588^2 + 34459^2 .

It is not a de Polignac number, because 1345880425 - 2¹ = 1345880423 is a prime.

It is a super-2 number, since 2×1345880425² = 3622788236796361250, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345880423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26917584 + ... + 26917633.

Almost surely, 2^1345880425 is an apocalyptic number.

It is an amenable number.

1345880425 is a deficient number, since it is larger than the sum of its proper divisors (323011333).

1345880425 is an equidigital number, since it uses as much as digits as its factorization.

1345880425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53835227 (or 53835222 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 1345880425 is about 36686.2429937981. The cubic root of 1345880425 is about 1104.0841082848.

The spelling of 1345880425 in words is "one billion, three hundred forty-five million, eight hundred eighty thousand, four hundred twenty-five".