1143362857 has 8 divisors (see below), whose sum is σ = 1407215936. Its totient is φ = 904638672.

The previous prime is 1143362837. The next prime is 1143362873. The reversal of 1143362857 is 7582633411.

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

It is a de Polignac number, because none of the positive numbers 2^k-1143362857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143362837) 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, 6282123 + ... + 6282304.

It is an arithmetic number, because the mean of its divisors is an integer number (175901992).

Almost surely, 2^1143362857 is an apocalyptic number.

It is an amenable number.

1143362857 is a deficient number, since it is larger than the sum of its proper divisors (263853079).

1143362857 is a wasteful number, since it uses less digits than its factorization.

1143362857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12564447.

The product of its digits is 120960, while the sum is 40.

The square root of 1143362857 is about 33813.6489749332. The cubic root of 1143362857 is about 1045.6701079627.

The spelling of 1143362857 in words is "one billion, one hundred forty-three million, three hundred sixty-two thousand, eight hundred fifty-seven".