1255022243 has 8 divisors (see below), whose sum is σ = 1265011440. Its totient is φ = 1245047040.

The previous prime is 1255022231. The next prime is 1255022267. The reversal of 1255022243 is 3422205521.

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

It is a cyclic number.

It is not a de Polignac number, because 1255022243 - 2⁶ = 1255022179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255022213) 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, 244463 + ... + 249543.

It is an arithmetic number, because the mean of its divisors is an integer number (158126430).

Almost surely, 2^1255022243 is an apocalyptic number.

1255022243 is a deficient number, since it is larger than the sum of its proper divisors (9989197).

1255022243 is a wasteful number, since it uses less digits than its factorization.

1255022243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6997.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1255022243 is about 35426.2931027224. The cubic root of 1255022243 is about 1078.6580964597.

Adding to 1255022243 its reverse (3422205521), we get a palindrome (4677227764).

The spelling of 1255022243 in words is "one billion, two hundred fifty-five million, twenty-two thousand, two hundred forty-three".