1226231544 has 64 divisors (see below), whose sum is σ = 3096433440. Its totient is φ = 404651520.

The previous prime is 1226231543. The next prime is 1226231549. The reversal of 1226231544 is 4451326221.

1226231544 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226231543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1585942 + ... + 1586714.

Almost surely, 2^1226231544 is an apocalyptic number.

It is an amenable number.

1226231544 is an abundant number, since it is smaller than the sum of its proper divisors (1870201896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226231544 is a wasteful number, since it uses less digits than its factorization.

1226231544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1360 (or 1356 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 1226231544 is about 35017.5890660679. The cubic root of 1226231544 is about 1070.3459282702.

Adding to 1226231544 its reverse (4451326221), we get a palindrome (5677557765).

The spelling of 1226231544 in words is "one billion, two hundred twenty-six million, two hundred thirty-one thousand, five hundred forty-four".