1244142 has 12 divisors (see below), whose sum is σ = 2695680. Its totient is φ = 414708.

The previous prime is 1244141. The next prime is 1244143. The reversal of 1244142 is 2414421.

It is an interprime number because it is at equal distance from previous prime (1244141) and next prime (1244143).

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 69119 = 1244142 / (1 + 2 + 4 + 4 + 1 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244141) 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, 34542 + ... + 34577.

It is an arithmetic number, because the mean of its divisors is an integer number (224640).

2^1244142 is an apocalyptic number.

1244142 is an abundant number, since it is smaller than the sum of its proper divisors (1451538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244142 is a wasteful number, since it uses less digits than its factorization.

1244142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69127 (or 69124 counting only the distinct ones).

The product of its digits is 256, while the sum is 18.

The square root of 1244142 is about 1115.4111349632. The cubic root of 1244142 is about 107.5531952338.

Adding to 1244142 its reverse (2414421), we get a palindrome (3658563).

The spelling of 1244142 in words is "one million, two hundred forty-four thousand, one hundred forty-two".