1226526203 has 12 divisors (see below), whose sum is σ = 1475976240. Its totient is φ = 1015054992.

The previous prime is 1226526199. The next prime is 1226526211. The reversal of 1226526203 is 3026256221.

It is not a de Polignac number, because 1226526203 - 2² = 1226526199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1226525203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 430151 + ... + 432992.

It is an arithmetic number, because the mean of its divisors is an integer number (122998020).

Almost surely, 2^1226526203 is an apocalyptic number.

1226526203 is a deficient number, since it is larger than the sum of its proper divisors (249450037).

1226526203 is an equidigital number, since it uses as much as digits as its factorization.

1226526203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863186 (or 863179 counting only the distinct ones).

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

The square root of 1226526203 is about 35021.7961132778. The cubic root of 1226526203 is about 1070.4316548209.

The spelling of 1226526203 in words is "one billion, two hundred twenty-six million, five hundred twenty-six thousand, two hundred three".