1226526229 has 4 divisors (see below), whose sum is σ = 1227457440. Its totient is φ = 1225595020.

The previous prime is 1226526227. The next prime is 1226526289. The reversal of 1226526229 is 9226256221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1226526229 - 2¹ = 1226526227 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 (1226526227) 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, 463627 + ... + 466264.

It is an arithmetic number, because the mean of its divisors is an integer number (306864360).

Almost surely, 2^1226526229 is an apocalyptic number.

It is an amenable number.

1226526229 is a deficient number, since it is larger than the sum of its proper divisors (931211).

1226526229 is an equidigital number, since it uses as much as digits as its factorization.

1226526229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931210.

The product of its digits is 51840, while the sum is 37.

The square root of 1226526229 is about 35021.7964844752. The cubic root of 1226526229 is about 1070.4316623846.

It can be divided in two parts, 122652 and 6229, that added together give a square (128881 = 359²).

The spelling of 1226526229 in words is "one billion, two hundred twenty-six million, five hundred twenty-six thousand, two hundred twenty-nine".