1345710239 has 4 divisors (see below), whose sum is σ = 1382080824. Its totient is φ = 1309339656.

The previous prime is 1345710211. The next prime is 1345710257. The reversal of 1345710239 is 9320175431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1345710239 - 2¹² = 1345706143 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345710199 and 1345710208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345710269) 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, 18185237 + ... + 18185310.

It is an arithmetic number, because the mean of its divisors is an integer number (345520206).

Almost surely, 2^1345710239 is an apocalyptic number.

1345710239 is a deficient number, since it is larger than the sum of its proper divisors (36370585).

1345710239 is an equidigital number, since it uses as much as digits as its factorization.

1345710239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36370584.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 1345710239 is about 36683.9234406572. The cubic root of 1345710239 is about 1104.0375693365.

The spelling of 1345710239 in words is "one billion, three hundred forty-five million, seven hundred ten thousand, two hundred thirty-nine".