1143775351 has 16 divisors (see below), whose sum is σ = 1249603200. Its totient is φ = 1042748928.

The previous prime is 1143775337. The next prime is 1143775363. The reversal of 1143775351 is 1535773411.

It is a cyclic number.

It is not a de Polignac number, because 1143775351 - 2¹³ = 1143767159 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1143775351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143775951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63145 + ... + 79213.

It is an arithmetic number, because the mean of its divisors is an integer number (78100200).

Almost surely, 2^1143775351 is an apocalyptic number.

1143775351 is a deficient number, since it is larger than the sum of its proper divisors (105827849).

1143775351 is a wasteful number, since it uses less digits than its factorization.

1143775351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16218.

The product of its digits is 44100, while the sum is 37.

The square root of 1143775351 is about 33819.7479440637. The cubic root of 1143775351 is about 1045.7958425541.

The spelling of 1143775351 in words is "one billion, one hundred forty-three million, seven hundred seventy-five thousand, three hundred fifty-one".