1151122143 has 8 divisors (see below), whose sum is σ = 1587754800. Its totient is φ = 740952128.

The previous prime is 1151122123. The next prime is 1151122153. The reversal of 1151122143 is 3412211511.

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

It is a cyclic number.

It is not a de Polignac number, because 1151122143 - 2⁵ = 1151122111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1151122123) 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, 6615558 + ... + 6615731.

It is an arithmetic number, because the mean of its divisors is an integer number (198469350).

Almost surely, 2^1151122143 is an apocalyptic number.

1151122143 is a deficient number, since it is larger than the sum of its proper divisors (436632657).

1151122143 is a wasteful number, since it uses less digits than its factorization.

1151122143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13231321.

The product of its digits is 240, while the sum is 21.

The square root of 1151122143 is about 33928.1909774158. The cubic root of 1151122143 is about 1048.0302126825.

Adding to 1151122143 its reverse (3412211511), we get a palindrome (4563333654).

The spelling of 1151122143 in words is "one billion, one hundred fifty-one million, one hundred twenty-two thousand, one hundred forty-three".