143923956 has 24 divisors (see below), whose sum is σ = 366352224. Its totient is φ = 43613280.

The previous prime is 143923933. The next prime is 143923957. The reversal of 143923956 is 659329341.

It is a happy number.

It is a super-2 number, since 2×143923956² = 41428210221379872, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143923957) 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, 545035 + ... + 545298.

It is an arithmetic number, because the mean of its divisors is an integer number (15264676).

Almost surely, 2^143923956 is an apocalyptic number.

It is an amenable number.

143923956 is an abundant number, since it is smaller than the sum of its proper divisors (222428268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143923956 is a wasteful number, since it uses less digits than its factorization.

143923956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1090351 (or 1090349 counting only the distinct ones).

The product of its digits is 174960, while the sum is 42.

The square root of 143923956 is about 11996.8310815815. The cubic root of 143923956 is about 524.0559979391.

The spelling of 143923956 in words is "one hundred forty-three million, nine hundred twenty-three thousand, nine hundred fifty-six".