143117956 has 24 divisors (see below), whose sum is σ = 267968960. Its totient is φ = 66679200.

The previous prime is 143117881. The next prime is 143117959. The reversal of 143117956 is 659711341.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (143117959) 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, 10800 + ... + 20071.

Almost surely, 2^143117956 is an apocalyptic number.

It is an amenable number.

143117956 is a deficient number, since it is larger than the sum of its proper divisors (124851004).

143117956 is a wasteful number, since it uses less digits than its factorization.

143117956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30955 (or 30953 counting only the distinct ones).

The product of its digits is 22680, while the sum is 37.

The square root of 143117956 is about 11963.1917145885. The cubic root of 143117956 is about 523.0758968417.

The spelling of 143117956 in words is "one hundred forty-three million, one hundred seventeen thousand, nine hundred fifty-six".