1227142 has 32 divisors (see below), whose sum is σ = 2276352. Its totient is φ = 484704.

The previous prime is 1227133. The next prime is 1227143. The reversal of 1227142 is 2417221.

It is a happy number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11863 + ... + 11965.

It is an arithmetic number, because the mean of its divisors is an integer number (71136).

2^1227142 is an apocalyptic number.

1227142 is a deficient number, since it is larger than the sum of its proper divisors (1049210).

1227142 is a wasteful number, since it uses less digits than its factorization.

1227142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172.

The product of its digits is 224, while the sum is 19.

The square root of 1227142 is about 1107.7644153880. The cubic root of 1227142 is about 107.0610767265.

It can be divided in two parts, 1227 and 142, that added together give a square (1369 = 37²).

The spelling of 1227142 in words is "one million, two hundred twenty-seven thousand, one hundred forty-two".