1226145652 has 6 divisors (see below), whose sum is σ = 2145754898. Its totient is φ = 613072824.

The previous prime is 1226145593. The next prime is 1226145691. The reversal of 1226145652 is 2565416221.

It can be written as a sum of positive squares in only one way, i.e., 1224720016 + 1425636 = 34996^2 + 1194^2 .

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 as a sum of consecutive naturals, namely, 153268203 + ... + 153268210.

Almost surely, 2^1226145652 is an apocalyptic number.

It is an amenable number.

1226145652 is a deficient number, since it is larger than the sum of its proper divisors (919609246).

1226145652 is a wasteful number, since it uses less digits than its factorization.

1226145652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306536417 (or 306536415 counting only the distinct ones).

The product of its digits is 28800, while the sum is 34.

The square root of 1226145652 is about 35016.3626323466. The cubic root of 1226145652 is about 1070.3209367152.

The spelling of 1226145652 in words is "one billion, two hundred twenty-six million, one hundred forty-five thousand, six hundred fifty-two".