143478 has 16 divisors (see below), whose sum is σ = 318960. Its totient is φ = 47808.

The previous prime is 143477. The next prime is 143483. The reversal of 143478 is 874341.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

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

It is a nialpdrome in base 11.

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 143478.

It is not an unprimeable number, because it can be changed into a prime (143477) 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, 1275 + ... + 1382.

It is an arithmetic number, because the mean of its divisors is an integer number (19935).

2¹⁴³⁴⁷⁸ is an apocalyptic number.

143478 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

143478 is an abundant number, since it is smaller than the sum of its proper divisors (175482).

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

143478 is a wasteful number, since it uses less digits than its factorization.

143478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668 (or 2662 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 143478 is about 378.7848993822. The cubic root of 143478 is about 52.3514166167.

The spelling of 143478 in words is "one hundred forty-three thousand, four hundred seventy-eight".