1273743 has 12 divisors (see below), whose sum is σ = 1849848. Its totient is φ = 844560.

The previous prime is 1273739. The next prime is 1273757. The reversal of 1273743 is 3473721.

It is not a de Polignac number, because 1273743 - 2² = 1273739 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1273733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2533 + ... + 2993.

It is an arithmetic number, because the mean of its divisors is an integer number (154154).

2^1273743 is an apocalyptic number.

1273743 is a deficient number, since it is larger than the sum of its proper divisors (576105).

1273743 is a wasteful number, since it uses less digits than its factorization.

1273743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 771 counting only the distinct ones).

The product of its digits is 3528, while the sum is 27.

The square root of 1273743 is about 1128.6022328527. The cubic root of 1273743 is about 108.3994977805.

It can be divided in two parts, 1273 and 743, that added together give a triangular number (2016 = T₆₃).

The spelling of 1273743 in words is "one million, two hundred seventy-three thousand, seven hundred forty-three".