1123142 has 8 divisors (see below), whose sum is σ = 1689336. Its totient is φ = 560032.

The previous prime is 1123127. The next prime is 1123151. The reversal of 1123142 is 2413211.

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

It is a super-2 number, since 2×1123142² = 2522895904328, which contains 22 as substring.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 713 + ... + 1659.

It is an arithmetic number, because the mean of its divisors is an integer number (211167).

2^1123142 is an apocalyptic number.

1123142 is a deficient number, since it is larger than the sum of its proper divisors (566194).

1123142 is an equidigital number, since it uses as much as digits as its factorization.

1123142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its digits is 48, while the sum is 14.

The square root of 1123142 is about 1059.7839402444. The cubic root of 1123142 is about 103.9469033698.

Adding to 1123142 its reverse (2413211), we get a palindrome (3536353).

The spelling of 1123142 in words is "one million, one hundred twenty-three thousand, one hundred forty-two".