1154254222 has 16 divisors (see below), whose sum is σ = 1934848944. Its totient is φ = 511864000.

The previous prime is 1154254163. The next prime is 1154254243. The reversal of 1154254222 is 2224524511.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 638929 + ... + 640732.

It is an arithmetic number, because the mean of its divisors is an integer number (120928059).

Almost surely, 2^1154254222 is an apocalyptic number.

1154254222 is a deficient number, since it is larger than the sum of its proper divisors (780594722).

1154254222 is a wasteful number, since it uses less digits than its factorization.

1154254222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279715.

The product of its digits is 6400, while the sum is 28.

The square root of 1154254222 is about 33974.3170939461. The cubic root of 1154254222 is about 1048.9798775555.

Adding to 1154254222 its reverse (2224524511), we get a palindrome (3378778733).

The spelling of 1154254222 in words is "one billion, one hundred fifty-four million, two hundred fifty-four thousand, two hundred twenty-two".