1345839 has 16 divisors (see below), whose sum is σ = 2073600. Its totient is φ = 767360.

The previous prime is 1345811. The next prime is 1345859. The reversal of 1345839 is 9385431.

It is not a de Polignac number, because 1345839 - 2⁷ = 1345711 is a prime.

It is a super-2 number, since 2×1345839² = 3622565227842, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 639 + ... + 1760.

It is an arithmetic number, because the mean of its divisors is an integer number (129600).

2^1345839 is an apocalyptic number.

1345839 is a deficient number, since it is larger than the sum of its proper divisors (727761).

1345839 is a wasteful number, since it uses less digits than its factorization.

1345839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2430.

The product of its digits is 12960, while the sum is 33.

The square root of 1345839 is about 1160.1030126674. The cubic root of 1345839 is about 110.4072780594.

The spelling of 1345839 in words is "one million, three hundred forty-five thousand, eight hundred thirty-nine".