1144122616 has 64 divisors (see below), whose sum is σ = 2731377600. Its totient is φ = 437004288.

The previous prime is 1144122599. The next prime is 1144122643. The reversal of 1144122616 is 6162214411.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5985 + ... + 48208.

It is an arithmetic number, because the mean of its divisors is an integer number (42677775).

Almost surely, 2^1144122616 is an apocalyptic number.

It is an amenable number.

1144122616 is an abundant number, since it is smaller than the sum of its proper divisors (1587254984).

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

1144122616 is a wasteful number, since it uses less digits than its factorization.

1144122616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54248 (or 54244 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 1144122616 is about 33824.8816110271. The cubic root of 1144122616 is about 1045.9016708956.

The spelling of 1144122616 in words is "one billion, one hundred forty-four million, one hundred twenty-two thousand, six hundred sixteen".