1345870539 has 24 divisors (see below), whose sum is σ = 2159063280. Its totient is φ = 828225216.

The previous prime is 1345870517. The next prime is 1345870543. The reversal of 1345870539 is 9350785431.

1345870539 is a `hidden beast` number, since 1 + 3 + 45 + 8 + 70 + 539 = 666.

It is not a de Polignac number, because 1345870539 - 2²⁰ = 1344821963 is a prime.

It is a super-2 number, since 2×1345870539² = 3622735015496301042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1345870494 and 1345870503.

It is not an unprimeable number, because it can be changed into a prime (1345870579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 142914 + ... + 152039.

It is an arithmetic number, because the mean of its divisors is an integer number (89960970).

Almost surely, 2^1345870539 is an apocalyptic number.

1345870539 is a deficient number, since it is larger than the sum of its proper divisors (813192741).

1345870539 is a wasteful number, since it uses less digits than its factorization.

1345870539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294988 (or 294969 counting only the distinct ones).

The product of its (nonzero) digits is 453600, while the sum is 45.

The square root of 1345870539 is about 36686.1082563959. The cubic root of 1345870539 is about 1104.0814049732.

The spelling of 1345870539 in words is "one billion, three hundred forty-five million, eight hundred seventy thousand, five hundred thirty-nine".