143668089 has 6 divisors (see below), whose sum is σ = 207520586. Its totient is φ = 95778720.

The previous prime is 143668081. The next prime is 143668121. The reversal of 143668089 is 980866341.

It can be written as a sum of positive squares in only one way, i.e., 109935225 + 33732864 = 10485^2 + 5808^2 .

It is not a de Polignac number, because 143668089 - 2³ = 143668081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143668081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7981552 + ... + 7981569.

Almost surely, 2^143668089 is an apocalyptic number.

It is an amenable number.

143668089 is a deficient number, since it is larger than the sum of its proper divisors (63852497).

143668089 is a wasteful number, since it uses less digits than its factorization.

143668089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15963127 (or 15963124 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 143668089 is about 11986.1623966973. The cubic root of 143668089 is about 523.7452593636.

The spelling of 143668089 in words is "one hundred forty-three million, six hundred sixty-eight thousand, eighty-nine".