143730 has 24 divisors (see below), whose sum is σ = 373932. Its totient is φ = 38304.

The previous prime is 143729. The next prime is 143743. The reversal of 143730 is 37341.

It can be written as a sum of positive squares in 2 ways, for example, as 136161 + 7569 = 369^2 + 87^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 709 + ... + 888.

2¹⁴³⁷³⁰ is an apocalyptic number.

143730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143730 is an abundant number, since it is smaller than the sum of its proper divisors (230202).

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

143730 is a wasteful number, since it uses less digits than its factorization.

143730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610 (or 1607 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 143730 is about 379.1173960662. The cubic root of 143730 is about 52.3820481209.

The spelling of 143730 in words is "one hundred forty-three thousand, seven hundred thirty".