1243671 has 24 divisors (see below), whose sum is σ = 1967616. Its totient is φ = 692640.

The previous prime is 1243663. The next prime is 1243673. The reversal of 1243671 is 1763421.

It is not a de Polignac number, because 1243671 - 2³ = 1243663 is a prime.

1243671 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243673) 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, 5466 + ... + 5688.

It is an arithmetic number, because the mean of its divisors is an integer number (81984).

2^1243671 is an apocalyptic number.

1243671 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1243671 is a deficient number, since it is larger than the sum of its proper divisors (723945).

1243671 is a wasteful number, since it uses less digits than its factorization.

1243671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263 (or 250 counting only the distinct ones).

The product of its digits is 1008, while the sum is 24.

The square root of 1243671 is about 1115.1999820660. The cubic root of 1243671 is about 107.5396212342.

The spelling of 1243671 in words is "one million, two hundred forty-three thousand, six hundred seventy-one".