143689022 has 8 divisors (see below), whose sum is σ = 216724872. Its totient is φ = 71447400.

The previous prime is 143688967. The next prime is 143689037. The reversal of 143689022 is 220986341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198104 + ... + 198827.

It is an arithmetic number, because the mean of its divisors is an integer number (27090609).

Almost surely, 2^143689022 is an apocalyptic number.

143689022 is a deficient number, since it is larger than the sum of its proper divisors (73035850).

143689022 is a wasteful number, since it uses less digits than its factorization.

143689022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397114.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 143689022 is about 11987.0355801591. The cubic root of 143689022 is about 523.7706953695.

The spelling of 143689022 in words is "one hundred forty-three million, six hundred eighty-nine thousand, twenty-two".