1143938254 has 16 divisors (see below), whose sum is σ = 1773636480. Its totient is φ = 552775680.

The previous prime is 1143938233. The next prime is 1143938261. The reversal of 1143938254 is 4528393411.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35682 + ... + 59674.

It is an arithmetic number, because the mean of its divisors is an integer number (110852280).

Almost surely, 2^1143938254 is an apocalyptic number.

1143938254 is a deficient number, since it is larger than the sum of its proper divisors (629698226).

1143938254 is a wasteful number, since it uses less digits than its factorization.

1143938254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24795.

The product of its digits is 103680, while the sum is 40.

The square root of 1143938254 is about 33822.1562588786. The cubic root of 1143938254 is about 1045.8454895973.

The spelling of 1143938254 in words is "one billion, one hundred forty-three million, nine hundred thirty-eight thousand, two hundred fifty-four".