1143401099 has 4 divisors (see below), whose sum is σ = 1143995160. Its totient is φ = 1142807040.

The previous prime is 1143401053. The next prime is 1143401131. The reversal of 1143401099 is 9901043411.

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-1143401099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143400099) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 294134 + ... + 297995.

It is an arithmetic number, because the mean of its divisors is an integer number (285998790).

Almost surely, 2^1143401099 is an apocalyptic number.

1143401099 is a deficient number, since it is larger than the sum of its proper divisors (594061).

1143401099 is an equidigital number, since it uses as much as digits as its factorization.

1143401099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594060.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 1143401099 is about 33814.2144519136. The cubic root of 1143401099 is about 1045.6817659913.

The spelling of 1143401099 in words is "one billion, one hundred forty-three million, four hundred one thousand, ninety-nine".