1071143158 has 16 divisors (see below), whose sum is σ = 1653187536. Its totient is φ = 520218720.

The previous prime is 1071143147. The next prime is 1071143209. The reversal of 1071143158 is 8513411701.

It is a happy number.

It is a super-2 number, since 2×1071143158² = 2294695329860425928, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18841 + ... + 49972.

It is an arithmetic number, because the mean of its divisors is an integer number (103324221).

Almost surely, 2^1071143158 is an apocalyptic number.

1071143158 is a deficient number, since it is larger than the sum of its proper divisors (582044378).

1071143158 is a wasteful number, since it uses less digits than its factorization.

1071143158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69039.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 1071143158 is about 32728.3234828795. The cubic root of 1071143158 is about 1023.1732389925.

Adding to 1071143158 its reverse (8513411701), we get a palindrome (9584554859).

The spelling of 1071143158 in words is "one billion, seventy-one million, one hundred forty-three thousand, one hundred fifty-eight".