1143797938 has 4 divisors (see below), whose sum is σ = 1715696910. Its totient is φ = 571898968.

The previous prime is 1143797923. The next prime is 1143797959. The reversal of 1143797938 is 8397973411.

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

It can be written as a sum of positive squares in only one way, i.e., 676676169 + 467121769 = 26013^2 + 21613^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285949483 + ... + 285949486.

Almost surely, 2^1143797938 is an apocalyptic number.

1143797938 is a deficient number, since it is larger than the sum of its proper divisors (571898972).

1143797938 is an equidigital number, since it uses as much as digits as its factorization.

1143797938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571898971.

The product of its digits is 1143072, while the sum is 52.

The square root of 1143797938 is about 33820.0818745313. The cubic root of 1143797938 is about 1045.8027265502.

The spelling of 1143797938 in words is "one billion, one hundred forty-three million, seven hundred ninety-seven thousand, nine hundred thirty-eight".