1292543 has 4 divisors (see below), whose sum is σ = 1477200. Its totient is φ = 1107888.

The previous prime is 1292539. The next prime is 1292549. The reversal of 1292543 is 3452921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1292543 - 2² = 1292539 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1292549) 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, 92318 + ... + 92331.

It is an arithmetic number, because the mean of its divisors is an integer number (369300).

2^1292543 is an apocalyptic number.

1292543 is a deficient number, since it is larger than the sum of its proper divisors (184657).

1292543 is an equidigital number, since it uses as much as digits as its factorization.

1292543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184656.

The product of its digits is 2160, while the sum is 26.

The square root of 1292543 is about 1136.9006113113. The cubic root of 1292543 is about 108.9302081069.

The spelling of 1292543 in words is "one million, two hundred ninety-two thousand, five hundred forty-three".