1049143811 has 4 divisors (see below), whose sum is σ = 1049467824. Its totient is φ = 1048819800.

The previous prime is 1049143801. The next prime is 1049143813. The reversal of 1049143811 is 1183419401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1049143811 is a prime.

It is a super-2 number, since 2×1049143811² = 2201405472319207442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1049143813) 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 3 ways as a sum of consecutive naturals, for example, 157100 + ... + 163641.

It is an arithmetic number, because the mean of its divisors is an integer number (262366956).

Almost surely, 2^1049143811 is an apocalyptic number.

1049143811 is a deficient number, since it is larger than the sum of its proper divisors (324013).

1049143811 is an equidigital number, since it uses as much as digits as its factorization.

1049143811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324012.

The product of its (nonzero) digits is 3456, while the sum is 32.

The square root of 1049143811 is about 32390.4895146708. The cubic root of 1049143811 is about 1016.1200190305.

The spelling of 1049143811 in words is "one billion, forty-nine million, one hundred forty-three thousand, eight hundred eleven".