1143022401 has 8 divisors (see below), whose sum is σ = 1693366560. Its totient is φ = 762014916.

The previous prime is 1143022367. The next prime is 1143022409. The reversal of 1143022401 is 1042203411.

1143022401 is a `hidden beast` number, since 11 + 430 + 224 + 0 + 1 = 666.

It is not a de Polignac number, because 1143022401 - 2⁹ = 1143021889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143022409) 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, 21167055 + ... + 21167108.

It is an arithmetic number, because the mean of its divisors is an integer number (211670820).

Almost surely, 2^1143022401 is an apocalyptic number.

It is an amenable number.

1143022401 is a deficient number, since it is larger than the sum of its proper divisors (550344159).

1143022401 is an equidigital number, since it uses as much as digits as its factorization.

1143022401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42334172 (or 42334166 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1143022401 is about 33808.6143016835. The cubic root of 1143022401 is about 1045.5663088928.

Adding to 1143022401 its reverse (1042203411), we get a palindrome (2185225812).

The spelling of 1143022401 in words is "one billion, one hundred forty-three million, twenty-two thousand, four hundred one".