1226145436 has 12 divisors (see below), whose sum is σ = 2160156600. Its totient is φ = 608957840.

The previous prime is 1226145397. The next prime is 1226145499. The reversal of 1226145436 is 6345416221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1028050 + ... + 1029241.

It is an arithmetic number, because the mean of its divisors is an integer number (180013050).

Almost surely, 2^1226145436 is an apocalyptic number.

It is an amenable number.

1226145436 is a deficient number, since it is larger than the sum of its proper divisors (934011164).

1226145436 is a wasteful number, since it uses less digits than its factorization.

1226145436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057444 (or 2057442 counting only the distinct ones).

The product of its digits is 34560, while the sum is 34.

The square root of 1226145436 is about 35016.3595480741. The cubic root of 1226145436 is about 1070.3208738653.

The spelling of 1226145436 in words is "one billion, two hundred twenty-six million, one hundred forty-five thousand, four hundred thirty-six".