1345252439 has 8 divisors (see below), whose sum is σ = 1354209168. Its totient is φ = 1336325760.

The previous prime is 1345252429. The next prime is 1345252481. The reversal of 1345252439 is 9342525431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345252439 is a prime.

It is a super-3 number, since 3×1345252439³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345252429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86144 + ... + 100554.

It is an arithmetic number, because the mean of its divisors is an integer number (169276146).

Almost surely, 2^1345252439 is an apocalyptic number.

1345252439 is a deficient number, since it is larger than the sum of its proper divisors (8956729).

1345252439 is a wasteful number, since it uses less digits than its factorization.

1345252439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15025.

The product of its digits is 129600, while the sum is 38.

The square root of 1345252439 is about 36677.6831193029. The cubic root of 1345252439 is about 1103.9123601818.

The spelling of 1345252439 in words is "one billion, three hundred forty-five million, two hundred fifty-two thousand, four hundred thirty-nine".