1262256203 has 16 divisors (see below), whose sum is σ = 1432838400. Its totient is φ = 1102338720.

The previous prime is 1262256187. The next prime is 1262256211. The reversal of 1262256203 is 3026522621.

It is a cyclic number.

It is not a de Polignac number, because 1262256203 - 2⁴ = 1262256187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1262256223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204188 + ... + 210278.

It is an arithmetic number, because the mean of its divisors is an integer number (89552400).

Almost surely, 2^1262256203 is an apocalyptic number.

1262256203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1262256203 is a deficient number, since it is larger than the sum of its proper divisors (170582197).

1262256203 is a wasteful number, since it uses less digits than its factorization.

1262256203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6962.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 1262256203 is about 35528.2451438289. The cubic root of 1262256203 is about 1080.7265923932.

Adding to 1262256203 its reverse (3026522621), we get a palindrome (4288778824).

The spelling of 1262256203 in words is "one billion, two hundred sixty-two million, two hundred fifty-six thousand, two hundred three".