1345255039 has 4 divisors (see below), whose sum is σ = 1357827624. Its totient is φ = 1332682456.

The previous prime is 1345255019. The next prime is 1345255049. The reversal of 1345255039 is 9305525431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9305525431 = 1523 ⋅6109997.

It is a cyclic number.

It is not a de Polignac number, because 1345255039 - 2⁵ = 1345255007 is a prime.

It is a super-2 number, since 2×1345255039² = 3619422239909783042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345254989 and 1345255007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345255019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6286132 + ... + 6286345.

It is an arithmetic number, because the mean of its divisors is an integer number (339456906).

Almost surely, 2^1345255039 is an apocalyptic number.

1345255039 is a deficient number, since it is larger than the sum of its proper divisors (12572585).

1345255039 is a wasteful number, since it uses less digits than its factorization.

1345255039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12572584.

The product of its (nonzero) digits is 81000, while the sum is 37.

The square root of 1345255039 is about 36677.7185631822. The cubic root of 1345255039 is about 1103.9130713669.

The spelling of 1345255039 in words is "one billion, three hundred forty-five million, two hundred fifty-five thousand, thirty-nine".