143870 has 8 divisors (see below), whose sum is σ = 258984. Its totient is φ = 57544.

The previous prime is 143833. The next prime is 143873. The reversal of 143870 is 78341.

It is a happy number.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143870.

It is not an unprimeable number, because it can be changed into a prime (143873) by changing a digit.

143870 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 7184 + ... + 7203.

It is an arithmetic number, because the mean of its divisors is an integer number (32373).

2¹⁴³⁸⁷⁰ is an apocalyptic number.

143870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143870 is a deficient number, since it is larger than the sum of its proper divisors (115114).

143870 is a wasteful number, since it uses less digits than its factorization.

143870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14394.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 143870 is about 379.3019905036. The cubic root of 143870 is about 52.3990501547.

The spelling of 143870 in words is "one hundred forty-three thousand, eight hundred seventy".