1143121454 has 16 divisors (see below), whose sum is σ = 1739698560. Its totient is φ = 563235840.

The previous prime is 1143121433. The next prime is 1143121481. The reversal of 1143121454 is 4541213411.

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, 207374 + ... + 212814.

It is an arithmetic number, because the mean of its divisors is an integer number (108731160).

Almost surely, 2^1143121454 is an apocalyptic number.

1143121454 is a deficient number, since it is larger than the sum of its proper divisors (596577106).

1143121454 is a wasteful number, since it uses less digits than its factorization.

1143121454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6955.

The product of its digits is 1920, while the sum is 26.

The square root of 1143121454 is about 33810.0791776653. The cubic root of 1143121454 is about 1045.5965105429.

Adding to 1143121454 its reverse (4541213411), we get a palindrome (5684334865).

The spelling of 1143121454 in words is "one billion, one hundred forty-three million, one hundred twenty-one thousand, four hundred fifty-four".