1345116057 has 4 divisors (see below), whose sum is σ = 1793488080. Its totient is φ = 896744036.

The previous prime is 1345115971. The next prime is 1345116079. The reversal of 1345116057 is 7506115431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1345116057 - 2⁷ = 1345115929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1345116757) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 224186007 + ... + 224186012.

It is an arithmetic number, because the mean of its divisors is an integer number (448372020).

Almost surely, 2^1345116057 is an apocalyptic number.

It is an amenable number.

1345116057 is a deficient number, since it is larger than the sum of its proper divisors (448372023).

1345116057 is an equidigital number, since it uses as much as digits as its factorization.

1345116057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448372022.

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 1345116057 is about 36675.8238762267. The cubic root of 1345116057 is about 1103.8750539585.

The spelling of 1345116057 in words is "one billion, three hundred forty-five million, one hundred sixteen thousand, fifty-seven".