1242044255 has 8 divisors (see below), whose sum is σ = 1490700624. Its totient is φ = 993470400.

The previous prime is 1242044227. The next prime is 1242044257. The reversal of 1242044255 is 5524402421.

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

It is not a de Polignac number, because 1242044255 - 2²⁴ = 1225267039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242044257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19640 + ... + 53570.

It is an arithmetic number, because the mean of its divisors is an integer number (186337578).

Almost surely, 2^1242044255 is an apocalyptic number.

1242044255 is a deficient number, since it is larger than the sum of its proper divisors (248656369).

1242044255 is an equidigital number, since it uses as much as digits as its factorization.

1242044255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41257.

The product of its (nonzero) digits is 12800, while the sum is 29.

The square root of 1242044255 is about 35242.6482404487. The cubic root of 1242044255 is about 1074.9271282855.

Adding to 1242044255 its reverse (5524402421), we get a palindrome (6766446676).

The spelling of 1242044255 in words is "one billion, two hundred forty-two million, forty-four thousand, two hundred fifty-five".