1226144975 has 48 divisors (see below), whose sum is σ = 1799322336. Its totient is φ = 818688000.

The previous prime is 1226144951. The next prime is 1226144981. The reversal of 1226144975 is 5794416221.

It is not a de Polignac number, because 1226144975 - 2²⁰ = 1225096399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188477 + ... + 194873.

It is an arithmetic number, because the mean of its divisors is an integer number (37485882).

Almost surely, 2^1226144975 is an apocalyptic number.

1226144975 is a deficient number, since it is larger than the sum of its proper divisors (573177361).

1226144975 is a wasteful number, since it uses less digits than its factorization.

1226144975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6476 (or 6471 counting only the distinct ones).

The product of its digits is 120960, while the sum is 41.

The square root of 1226144975 is about 35016.3529654360. The cubic root of 1226144975 is about 1070.3207397274.

The spelling of 1226144975 in words is "one billion, two hundred twenty-six million, one hundred forty-four thousand, nine hundred seventy-five".