1141775999 has 24 divisors (see below), whose sum is σ = 1441893600. Its totient is φ = 903337344.

The previous prime is 1141775993. The next prime is 1141776047. The reversal of 1141775999 is 9995771411.

It is not a de Polignac number, because 1141775999 - 2⁴ = 1141775983 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1141775999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141775993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48119 + ... + 67815.

It is an arithmetic number, because the mean of its divisors is an integer number (60078900).

Almost surely, 2^1141775999 is an apocalyptic number.

1141775999 is a deficient number, since it is larger than the sum of its proper divisors (300117601).

1141775999 is an equidigital number, since it uses as much as digits as its factorization.

1141775999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19744 (or 19717 counting only the distinct ones).

The product of its digits is 714420, while the sum is 53.

The square root of 1141775999 is about 33790.1760723439. The cubic root of 1141775999 is about 1045.1861268094.

The spelling of 1141775999 in words is "one billion, one hundred forty-one million, seven hundred seventy-five thousand, nine hundred ninety-nine".