143890 has 8 divisors (see below), whose sum is σ = 259020. Its totient is φ = 57552.

The previous prime is 143881. The next prime is 143909. The reversal of 143890 is 98341.

143890 is an esthetic number in base 16, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 2 ways, for example, as 139129 + 4761 = 373^2 + 69^2 .

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 an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7185 + ... + 7204.

2¹⁴³⁸⁹⁰ is an apocalyptic number.

143890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143890 is a deficient number, since it is larger than the sum of its proper divisors (115130).

143890 is a wasteful number, since it uses less digits than its factorization.

143890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14396.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 143890 is about 379.3283538045. The cubic root of 143890 is about 52.4014781161.

The spelling of 143890 in words is "one hundred forty-three thousand, eight hundred ninety".