143861874 has 16 divisors (see below), whose sum is σ = 309856512. Its totient is φ = 44265168.

The previous prime is 143861873. The next prime is 143861881. The reversal of 143861874 is 478168341.

It is not an unprimeable number, because it can be changed into a prime (143861873) 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 7 ways as a sum of consecutive naturals, for example, 922114 + ... + 922269.

It is an arithmetic number, because the mean of its divisors is an integer number (19366032).

Almost surely, 2^143861874 is an apocalyptic number.

143861874 is an abundant number, since it is smaller than the sum of its proper divisors (165994638).

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

143861874 is a wasteful number, since it uses less digits than its factorization.

143861874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844401.

The product of its digits is 129024, while the sum is 42.

The square root of 143861874 is about 11994.2433692168. The cubic root of 143861874 is about 523.9806360966.

The spelling of 143861874 in words is "one hundred forty-three million, eight hundred sixty-one thousand, eight hundred seventy-four".