1143036638 has 8 divisors (see below), whose sum is σ = 1715538288. Its totient is φ = 571190544.

The previous prime is 1143036623. The next prime is 1143036641. The reversal of 1143036638 is 8366303411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1143036598 and 1143036607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159506 + ... + 166517.

It is an arithmetic number, because the mean of its divisors is an integer number (214442286).

Almost surely, 2^1143036638 is an apocalyptic number.

1143036638 is a deficient number, since it is larger than the sum of its proper divisors (572501650).

1143036638 is a wasteful number, since it uses less digits than its factorization.

1143036638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327778.

The product of its (nonzero) digits is 31104, while the sum is 35.

The square root of 1143036638 is about 33808.8248538751. The cubic root of 1143036638 is about 1045.5706499175.

The spelling of 1143036638 in words is "one billion, one hundred forty-three million, thirty-six thousand, six hundred thirty-eight".