1345873 has 6 divisors (see below), whose sum is σ = 1430006. Its totient is φ = 1266432.

The previous prime is 1345859. The next prime is 1345879. The reversal of 1345873 is 3785431.

It can be written as a sum of positive squares in 3 ways, for example, as 278784 + 1067089 = 528^2 + 1033^2 .

It is not a de Polignac number, because 1345873 - 2⁹ = 1345361 is a prime.

It is a super-2 number, since 2×1345873² = 3622748264258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1345879) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2040 + ... + 2617.

2^1345873 is an apocalyptic number.

It is an amenable number.

1345873 is a deficient number, since it is larger than the sum of its proper divisors (84133).

1345873 is an equidigital number, since it uses as much as digits as its factorization.

1345873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4691 (or 4674 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 1345873 is about 1160.1176664460. The cubic root of 1345873 is about 110.4082077931.

It can be divided in two parts, 13458 and 73, that added together give a palindrome (13531).

The spelling of 1345873 in words is "one million, three hundred forty-five thousand, eight hundred seventy-three".