1224377091 has 12 divisors (see below), whose sum is σ = 2021194032. Its totient is φ = 699644016.

The previous prime is 1224377087. The next prime is 1224377107. The reversal of 1224377091 is 1907734221.

It is not a de Polignac number, because 1224377091 - 2² = 1224377087 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1224377051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9717216 + ... + 9717341.

It is an arithmetic number, because the mean of its divisors is an integer number (168432836).

Almost surely, 2^1224377091 is an apocalyptic number.

1224377091 is a deficient number, since it is larger than the sum of its proper divisors (796816941).

1224377091 is a wasteful number, since it uses less digits than its factorization.

1224377091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19434570 (or 19434567 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 1224377091 is about 34991.1001684714. The cubic root of 1224377091 is about 1069.8060879568.

The spelling of 1224377091 in words is "one billion, two hundred twenty-four million, three hundred seventy-seven thousand, ninety-one".