143422986 has 32 divisors (see below), whose sum is σ = 342079488. Its totient is φ = 39196080.

The previous prime is 143422973. The next prime is 143422987. The reversal of 143422986 is 689224341.

It is not an unprimeable number, because it can be changed into a prime (143422987) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 73270 + ... + 75201.

It is an arithmetic number, because the mean of its divisors is an integer number (10689984).

Almost surely, 2^143422986 is an apocalyptic number.

143422986 is an abundant number, since it is smaller than the sum of its proper divisors (198656502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143422986 is a wasteful number, since it uses less digits than its factorization.

143422986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148506.

The product of its digits is 82944, while the sum is 39.

The square root of 143422986 is about 11975.9336170505. The cubic root of 143422986 is about 523.4472469874.

The spelling of 143422986 in words is "one hundred forty-three million, four hundred twenty-two thousand, nine hundred eighty-six".