1143208929 has 8 divisors (see below), whose sum is σ = 1604503840. Its totient is φ = 722026656.

The previous prime is 1143208903. The next prime is 1143208933. The reversal of 1143208929 is 9298023411.

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

It is not a de Polignac number, because 1143208929 - 2⁵ = 1143208897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143208949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10028092 + ... + 10028205.

It is an arithmetic number, because the mean of its divisors is an integer number (200562980).

Almost surely, 2^1143208929 is an apocalyptic number.

1143208929 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1143208929 is a deficient number, since it is larger than the sum of its proper divisors (461294911).

1143208929 is a wasteful number, since it uses less digits than its factorization.

1143208929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20056319.

The product of its (nonzero) digits is 31104, while the sum is 39.

The square root of 1143208929 is about 33811.3727760350. The cubic root of 1143208929 is about 1045.6231805646.

The spelling of 1143208929 in words is "one billion, one hundred forty-three million, two hundred eight thousand, nine hundred twenty-nine".