143994243 has 8 divisors (see below), whose sum is σ = 192547008. Its totient is φ = 95718824.

The previous prime is 143994241. The next prime is 143994271. The reversal of 143994243 is 342499341.

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 143994243 - 2¹ = 143994241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (143994241) 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, 68121 + ... + 70202.

It is an arithmetic number, because the mean of its divisors is an integer number (24068376).

Almost surely, 2^143994243 is an apocalyptic number.

143994243 is a deficient number, since it is larger than the sum of its proper divisors (48552765).

143994243 is a wasteful number, since it uses less digits than its factorization.

143994243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138673.

The product of its digits is 93312, while the sum is 39.

The square root of 143994243 is about 11999.7601226025. The cubic root of 143994243 is about 524.1412937449.

The spelling of 143994243 in words is "one hundred forty-three million, nine hundred ninety-four thousand, two hundred forty-three".