1345871 has 4 divisors (see below), whose sum is σ = 1348200. Its totient is φ = 1343544.

The previous prime is 1345859. The next prime is 1345879. The reversal of 1345871 is 1785431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345871 is a prime.

It is a super-2 number, since 2×1345871² = 3622737497282, which contains 22 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 (1345879) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 440 + ... + 1698.

It is an arithmetic number, because the mean of its divisors is an integer number (337050).

2^1345871 is an apocalyptic number.

1345871 is a deficient number, since it is larger than the sum of its proper divisors (2329).

1345871 is a wasteful number, since it uses less digits than its factorization.

1345871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2328.

The product of its digits is 3360, while the sum is 29.

The square root of 1345871 is about 1160.1168044641. The cubic root of 1345871 is about 110.4081531033.

The spelling of 1345871 in words is "one million, three hundred forty-five thousand, eight hundred seventy-one".