143994059 has 4 divisors (see below), whose sum is σ = 157084440. Its totient is φ = 130903680.

The previous prime is 143994023. The next prime is 143994061. The reversal of 143994059 is 950499341.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 950499341 = 11 ⋅86409031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143994059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143994089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6545174 + ... + 6545195.

It is an arithmetic number, because the mean of its divisors is an integer number (39271110).

Almost surely, 2^143994059 is an apocalyptic number.

143994059 is a deficient number, since it is larger than the sum of its proper divisors (13090381).

143994059 is a wasteful number, since it uses less digits than its factorization.

143994059 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13090380.

The product of its (nonzero) digits is 174960, while the sum is 44.

The square root of 143994059 is about 11999.7524557801. The cubic root of 143994059 is about 524.1410704905.

The spelling of 143994059 in words is "one hundred forty-three million, nine hundred ninety-four thousand, fifty-nine".