143745820 has 24 divisors (see below), whose sum is σ = 306374544. Its totient is φ = 56639616.

The previous prime is 143745803. The next prime is 143745841. The reversal of 143745820 is 28547341.

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 7 ways as a sum of consecutive naturals, for example, 52297 + ... + 54976.

It is an arithmetic number, because the mean of its divisors is an integer number (12765606).

Almost surely, 2^143745820 is an apocalyptic number.

143745820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143745820 is an abundant number, since it is smaller than the sum of its proper divisors (162628724).

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

143745820 is a wasteful number, since it uses less digits than its factorization.

143745820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107349 (or 107347 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 143745820 is about 11989.4044889644. The cubic root of 143745820 is about 523.8396990383.

The spelling of 143745820 in words is "one hundred forty-three million, seven hundred forty-five thousand, eight hundred twenty".