1143111454 has 8 divisors (see below), whose sum is σ = 1789218000. Its totient is φ = 546705456.

The previous prime is 1143111439. The next prime is 1143111457. The reversal of 1143111454 is 4541113411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143111457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12425079 + ... + 12425170.

It is an arithmetic number, because the mean of its divisors is an integer number (223652250).

Almost surely, 2^1143111454 is an apocalyptic number.

1143111454 is a deficient number, since it is larger than the sum of its proper divisors (646106546).

1143111454 is a wasteful number, since it uses less digits than its factorization.

1143111454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24850274.

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

The square root of 1143111454 is about 33809.9312924472. The cubic root of 1143111454 is about 1045.5934615827.

Adding to 1143111454 its reverse (4541113411), we get a palindrome (5684224865).

The spelling of 1143111454 in words is "one billion, one hundred forty-three million, one hundred eleven thousand, four hundred fifty-four".