143978429 has 16 divisors (see below), whose sum is σ = 170263296. Its totient is φ = 119184000.

The previous prime is 143978407. The next prime is 143978453. The reversal of 143978429 is 924879341.

It is a cyclic number.

It is not a de Polignac number, because 143978429 - 2²⁴ = 127201213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143978489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26504 + ... + 31470.

It is an arithmetic number, because the mean of its divisors is an integer number (10641456).

Almost surely, 2^143978429 is an apocalyptic number.

It is an amenable number.

143978429 is a deficient number, since it is larger than the sum of its proper divisors (26284867).

143978429 is a wasteful number, since it uses less digits than its factorization.

143978429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5116.

The product of its digits is 435456, while the sum is 47.

The square root of 143978429 is about 11999.1011746714. The cubic root of 143978429 is about 524.1221053068.

The spelling of 143978429 in words is "one hundred forty-three million, nine hundred seventy-eight thousand, four hundred twenty-nine".