143381934 has 16 divisors (see below), whose sum is σ = 318626640. Its totient is φ = 47793960.

The previous prime is 143381933. The next prime is 143381941. The reversal of 143381934 is 439183341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143381933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1327557 + ... + 1327664.

It is an arithmetic number, because the mean of its divisors is an integer number (19914165).

Almost surely, 2^143381934 is an apocalyptic number.

143381934 is an abundant number, since it is smaller than the sum of its proper divisors (175244706).

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

143381934 is a wasteful number, since it uses less digits than its factorization.

143381934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655232 (or 2655226 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 143381934 is about 11974.2195570317. The cubic root of 143381934 is about 523.3973000728.

The spelling of 143381934 in words is "one hundred forty-three million, three hundred eighty-one thousand, nine hundred thirty-four".