1224747147 has 32 divisors (see below), whose sum is σ = 1782144000. Its totient is φ = 743663232.

The previous prime is 1224747107. The next prime is 1224747149. The reversal of 1224747147 is 7417474221.

It is not a de Polignac number, because 1224747147 - 2⁸ = 1224746891 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (1224747149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2044354 + ... + 2044952.

It is an arithmetic number, because the mean of its divisors is an integer number (55692000).

Almost surely, 2^1224747147 is an apocalyptic number.

1224747147 is a deficient number, since it is larger than the sum of its proper divisors (557396853).

1224747147 is a wasteful number, since it uses less digits than its factorization.

1224747147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227.

The product of its digits is 87808, while the sum is 39.

The square root of 1224747147 is about 34996.3876278681. The cubic root of 1224747147 is about 1069.9138565756.

The spelling of 1224747147 in words is "one billion, two hundred twenty-four million, seven hundred forty-seven thousand, one hundred forty-seven".