143477668 has 6 divisors (see below), whose sum is σ = 251085926. Its totient is φ = 71738832.

The previous prime is 143477639. The next prime is 143477689. The reversal of 143477668 is 866774341.

It can be written as a sum of positive squares in only one way, i.e., 143472484 + 5184 = 11978^2 + 72^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17934705 + ... + 17934712.

Almost surely, 2^143477668 is an apocalyptic number.

It is an amenable number.

143477668 is a deficient number, since it is larger than the sum of its proper divisors (107608258).

143477668 is a wasteful number, since it uses less digits than its factorization.

143477668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35869421 (or 35869419 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 143477668 is about 11978.2163947726. The cubic root of 143477668 is about 523.5137623726.

The spelling of 143477668 in words is "one hundred forty-three million, four hundred seventy-seven thousand, six hundred sixty-eight".