1242773 has 4 divisors (see below), whose sum is σ = 1420320. Its totient is φ = 1065228.

The previous prime is 1242767. The next prime is 1242781. The reversal of 1242773 is 3772421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1242773 - 2⁴ = 1242757 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242763) 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, 88763 + ... + 88776.

It is an arithmetic number, because the mean of its divisors is an integer number (355080).

2^1242773 is an apocalyptic number.

It is an amenable number.

1242773 is a deficient number, since it is larger than the sum of its proper divisors (177547).

1242773 is an equidigital number, since it uses as much as digits as its factorization.

1242773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177546.

The product of its digits is 2352, while the sum is 26.

The square root of 1242773 is about 1114.7972909906. The cubic root of 1242773 is about 107.5137317955.

Subtracting from 1242773 its product of digits (2352), we obtain a palindrome (1240421).

The spelling of 1242773 in words is "one million, two hundred forty-two thousand, seven hundred seventy-three".