1226953355 has 4 divisors (see below), whose sum is σ = 1472344032. Its totient is φ = 981562680.

The previous prime is 1226953349. The next prime is 1226953363. The reversal of 1226953355 is 5533596221.

It is a happy number.

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

It is not a de Polignac number, because 1226953355 - 2¹² = 1226949259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 122695331 + ... + 122695340.

It is an arithmetic number, because the mean of its divisors is an integer number (368086008).

Almost surely, 2^1226953355 is an apocalyptic number.

1226953355 is a deficient number, since it is larger than the sum of its proper divisors (245390677).

1226953355 is an equidigital number, since it uses as much as digits as its factorization.

1226953355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245390676.

The product of its digits is 243000, while the sum is 41.

The square root of 1226953355 is about 35027.8939561030. The cubic root of 1226953355 is about 1070.5559038184. Note that the first 3 decimals are identical.

The spelling of 1226953355 in words is "one billion, two hundred twenty-six million, nine hundred fifty-three thousand, three hundred fifty-five".