1272242 has 8 divisors (see below), whose sum is σ = 1919916. Its totient is φ = 632272.

The previous prime is 1272233. The next prime is 1272247. The reversal of 1272242 is 2422721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1079521 + 192721 = 1039^2 + 439^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1272247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1493 + ... + 2184.

2^1272242 is an apocalyptic number.

1272242 is a deficient number, since it is larger than the sum of its proper divisors (647674).

1272242 is a wasteful number, since it uses less digits than its factorization.

1272242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3852.

The product of its digits is 448, while the sum is 20.

The square root of 1272242 is about 1127.9370549813. The cubic root of 1272242 is about 108.3569011184.

Adding to 1272242 its reverse (2422721), we get a palindrome (3694963).

The spelling of 1272242 in words is "one million, two hundred seventy-two thousand, two hundred forty-two".