1345053979 has 4 divisors (see below), whose sum is σ = 1347418440. Its totient is φ = 1342689520.

The previous prime is 1345053967. The next prime is 1345054019. The reversal of 1345053979 is 9793505431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9793505431 = 103 ⋅95082577.

It is a cyclic number.

It is not a de Polignac number, because 1345053979 - 2⁷ = 1345053851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345053929) 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, 1181377 + ... + 1182514.

It is an arithmetic number, because the mean of its divisors is an integer number (336854610).

Almost surely, 2^1345053979 is an apocalyptic number.

1345053979 is a deficient number, since it is larger than the sum of its proper divisors (2364461).

1345053979 is an equidigital number, since it uses as much as digits as its factorization.

1345053979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364460.

The product of its (nonzero) digits is 510300, while the sum is 46.

The square root of 1345053979 is about 36674.9775596387. The cubic root of 1345053979 is about 1103.8580721748.

The spelling of 1345053979 in words is "one billion, three hundred forty-five million, fifty-three thousand, nine hundred seventy-nine".