143678973 has 16 divisors (see below), whose sum is σ = 195687872. Its totient is φ = 93769200.

The previous prime is 143678971. The next prime is 143678987. The reversal of 143678973 is 379876341.

It is not a de Polignac number, because 143678973 - 2¹ = 143678971 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143678971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 680838 + ... + 681048.

It is an arithmetic number, because the mean of its divisors is an integer number (12230492).

Almost surely, 2^143678973 is an apocalyptic number.

It is an amenable number.

143678973 is a deficient number, since it is larger than the sum of its proper divisors (52008899).

143678973 is an frugal number, since it uses more digits than its factorization.

143678973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 275 counting only the distinct ones).

The product of its digits is 762048, while the sum is 48.

The square root of 143678973 is about 11986.6164116485. The cubic root of 143678973 is about 523.7584849855.

The spelling of 143678973 in words is "one hundred forty-three million, six hundred seventy-eight thousand, nine hundred seventy-three".