1143455406 has 8 divisors (see below), whose sum is σ = 2286910824. Its totient is φ = 381151800.

The previous prime is 1143455399. The next prime is 1143455449. The reversal of 1143455406 is 6045543411.

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

1143455406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95287945 + ... + 95287956.

It is an arithmetic number, because the mean of its divisors is an integer number (285863853).

Almost surely, 2^1143455406 is an apocalyptic number.

1143455406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143455406 is a wasteful number, since it uses less digits than its factorization.

1143455406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190575906.

The product of its (nonzero) digits is 28800, while the sum is 33.

The square root of 1143455406 is about 33815.0174626600. The cubic root of 1143455406 is about 1045.6983209694.

Adding to 1143455406 its reverse (6045543411), we get a palindrome (7188998817).

The spelling of 1143455406 in words is "one billion, one hundred forty-three million, four hundred fifty-five thousand, four hundred six".