1123742 has 12 divisors (see below), whose sum is σ = 1725048. Its totient is φ = 549000.

The previous prime is 1123741. The next prime is 1123747. The reversal of 1123742 is 2473211.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123741) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7367 + ... + 7517.

It is an arithmetic number, because the mean of its divisors is an integer number (143754).

2^1123742 is an apocalyptic number.

1123742 is a deficient number, since it is larger than the sum of its proper divisors (601306).

1123742 is an equidigital number, since it uses as much as digits as its factorization.

1123742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275 (or 214 counting only the distinct ones).

The product of its digits is 336, while the sum is 20.

The square root of 1123742 is about 1060.0669790159. The cubic root of 1123742 is about 103.9654100945.

Adding to 1123742 its reverse (2473211), we get a palindrome (3596953).

It can be divided in two parts, 11 and 23742, that multiplied together give a palindrome (261162).

The spelling of 1123742 in words is "one million, one hundred twenty-three thousand, seven hundred forty-two".