1143055138838 has 4 divisors (see below), whose sum is σ = 1714582708260. Its totient is φ = 571527569418.

The previous prime is 1143055138781. The next prime is 1143055138861. The reversal of 1143055138838 is 8388315503411.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285763784708 + ... + 285763784711.

It is an arithmetic number, because the mean of its divisors is an integer number (428645677065).

Almost surely, 2^{1143055138838} is an apocalyptic number.

1143055138838 is a deficient number, since it is larger than the sum of its proper divisors (571527569422).

1143055138838 is an equidigital number, since it uses as much as digits as its factorization.

1143055138838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571527569421.

The product of its (nonzero) digits is 1382400, while the sum is 50.

The spelling of 1143055138838 in words is "one trillion, one hundred forty-three billion, fifty-five million, one hundred thirty-eight thousand, eight hundred thirty-eight".