1224144154 has 16 divisors (see below), whose sum is σ = 1892931840. Its totient is φ = 593451360.

The previous prime is 1224144137. The next prime is 1224144169. The reversal of 1224144154 is 4514414221.

It is a happy 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 7 ways as a sum of consecutive naturals, for example, 62442 + ... + 79669.

It is an arithmetic number, because the mean of its divisors is an integer number (118308240).

Almost surely, 2^1224144154 is an apocalyptic number.

1224144154 is a deficient number, since it is larger than the sum of its proper divisors (668787686).

1224144154 is a wasteful number, since it uses less digits than its factorization.

1224144154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142245.

The product of its digits is 5120, while the sum is 28.

The square root of 1224144154 is about 34987.7714923371. The cubic root of 1224144154 is about 1069.7382403339.

Adding to 1224144154 its reverse (4514414221), we get a palindrome (5738558375).

The spelling of 1224144154 in words is "one billion, two hundred twenty-four million, one hundred forty-four thousand, one hundred fifty-four".