1345427765 has 16 divisors (see below), whose sum is σ = 1763686656. Its totient is φ = 977160000.

The previous prime is 1345427761. The next prime is 1345427813. The reversal of 1345427765 is 5677245431.

It is a happy number.

It is not a de Polignac number, because 1345427765 - 2² = 1345427761 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 (1345427761) 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 15 ways as a sum of consecutive naturals, for example, 25019 + ... + 57591.

It is an arithmetic number, because the mean of its divisors is an integer number (110230416).

Almost surely, 2^1345427765 is an apocalyptic number.

It is an amenable number.

1345427765 is a deficient number, since it is larger than the sum of its proper divisors (418258891).

1345427765 is a wasteful number, since it uses less digits than its factorization.

1345427765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33340.

The product of its digits is 705600, while the sum is 44.

The square root of 1345427765 is about 36680.0731324244. The cubic root of 1345427765 is about 1103.9603155259.

The spelling of 1345427765 in words is "one billion, three hundred forty-five million, four hundred twenty-seven thousand, seven hundred sixty-five".