1154221126 has 16 divisors (see below), whose sum is σ = 1757759040. Its totient is φ = 568339200.

The previous prime is 1154221087. The next prime is 1154221129. The reversal of 1154221126 is 6211224511.

It is a self number, because there is not a number n which added to its sum of digits gives 1154221126.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154221129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53526 + ... + 71926.

It is an arithmetic number, because the mean of its divisors is an integer number (109859940).

Almost surely, 2^1154221126 is an apocalyptic number.

1154221126 is a deficient number, since it is larger than the sum of its proper divisors (603537914).

1154221126 is a wasteful number, since it uses less digits than its factorization.

1154221126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18879.

The product of its digits is 960, while the sum is 25.

The square root of 1154221126 is about 33973.8300166466. The cubic root of 1154221126 is about 1048.9698516388.

Adding to 1154221126 its reverse (6211224511), we get a palindrome (7365445637).

The spelling of 1154221126 in words is "one billion, one hundred fifty-four million, two hundred twenty-one thousand, one hundred twenty-six".