1245743 has 8 divisors (see below), whose sum is σ = 1331712. Its totient is φ = 1161216.

The previous prime is 1245721. The next prime is 1245763. The reversal of 1245743 is 3475421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1245743 - 2¹⁴ = 1229359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245763) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1871 + ... + 2447.

It is an arithmetic number, because the mean of its divisors is an integer number (166464).

2^1245743 is an apocalyptic number.

1245743 is a deficient number, since it is larger than the sum of its proper divisors (85969).

1245743 is a wasteful number, since it uses less digits than its factorization.

1245743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721.

The product of its digits is 3360, while the sum is 26.

The square root of 1245743 is about 1116.1285768226. The cubic root of 1245743 is about 107.5993097066.

The spelling of 1245743 in words is "one million, two hundred forty-five thousand, seven hundred forty-three".