1255442203 has 4 divisors (see below), whose sum is σ = 1255586728. Its totient is φ = 1255297680.

The previous prime is 1255442131. The next prime is 1255442257. The reversal of 1255442203 is 3022445521.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1255442203 - 2²⁹ = 718571291 is a prime.

It is a super-2 number, since 2×1255442203² = 3152270250146986418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1255442273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58338 + ... + 76903.

It is an arithmetic number, because the mean of its divisors is an integer number (313896682).

Almost surely, 2^1255442203 is an apocalyptic number.

1255442203 is a deficient number, since it is larger than the sum of its proper divisors (144525).

1255442203 is an equidigital number, since it uses as much as digits as its factorization.

1255442203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144524.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1255442203 is about 35432.2198429621. The cubic root of 1255442203 is about 1078.7783978431.

Adding to 1255442203 its reverse (3022445521), we get a palindrome (4277887724).

The spelling of 1255442203 in words is "one billion, two hundred fifty-five million, four hundred forty-two thousand, two hundred three".