1143550401 has 8 divisors (see below), whose sum is σ = 1742553024. Its totient is φ = 653457360.

The previous prime is 1143550367. The next prime is 1143550403. The reversal of 1143550401 is 1040553411.

It is a happy number.

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

It is not a de Polignac number, because 1143550401 - 2⁶ = 1143550337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143550403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27227370 + ... + 27227411.

It is an arithmetic number, because the mean of its divisors is an integer number (217819128).

Almost surely, 2^1143550401 is an apocalyptic number.

It is an amenable number.

1143550401 is a deficient number, since it is larger than the sum of its proper divisors (599002623).

1143550401 is an equidigital number, since it uses as much as digits as its factorization.

1143550401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54454791.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1143550401 is about 33816.4220608863. The cubic root of 1143550401 is about 1045.7272780413.

The spelling of 1143550401 in words is "one billion, one hundred forty-three million, five hundred fifty thousand, four hundred one".