143431946 has 8 divisors (see below), whose sum is σ = 245883360. Its totient is φ = 61470828.

The previous prime is 143431927. The next prime is 143431963. The reversal of 143431946 is 649134341.

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5122556 + ... + 5122583.

It is an arithmetic number, because the mean of its divisors is an integer number (30735420).

Almost surely, 2^143431946 is an apocalyptic number.

143431946 is a deficient number, since it is larger than the sum of its proper divisors (102451414).

143431946 is a wasteful number, since it uses less digits than its factorization.

143431946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10245148.

The product of its digits is 31104, while the sum is 35.

The square root of 143431946 is about 11976.3076947781. The cubic root of 143431946 is about 523.4581471223.

The spelling of 143431946 in words is "one hundred forty-three million, four hundred thirty-one thousand, nine hundred forty-six".