1143414021 has 8 divisors (see below), whose sum is σ = 1539353920. Its totient is φ = 754875072.

The previous prime is 1143414017. The next prime is 1143414047. The reversal of 1143414021 is 1204143411.

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

It is not a de Polignac number, because 1143414021 - 2² = 1143414017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143414121) 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, 1849876 + ... + 1850493.

It is an arithmetic number, because the mean of its divisors is an integer number (192419240).

Almost surely, 2^1143414021 is an apocalyptic number.

It is an amenable number.

1143414021 is a deficient number, since it is larger than the sum of its proper divisors (395939899).

1143414021 is a wasteful number, since it uses less digits than its factorization.

1143414021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3700475.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1143414021 is about 33814.4055248647. The cubic root of 1143414021 is about 1045.6857051890.

Adding to 1143414021 its reverse (1204143411), we get a palindrome (2347557432).

The spelling of 1143414021 in words is "one billion, one hundred forty-three million, four hundred fourteen thousand, twenty-one".