143740 has 12 divisors (see below), whose sum is σ = 301896. Its totient is φ = 57488.

The previous prime is 143729. The next prime is 143743. The reversal of 143740 is 47341.

It is a happy number.

143740 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×143740² = 41322375200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3574 + ... + 3613.

It is an arithmetic number, because the mean of its divisors is an integer number (25158).

2¹⁴³⁷⁴⁰ is an apocalyptic number.

143740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143740 is an abundant number, since it is smaller than the sum of its proper divisors (158156).

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

143740 is a wasteful number, since it uses less digits than its factorization.

143740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7196 (or 7194 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 143740 is about 379.1305843638. The cubic root of 143740 is about 52.3832629179.

The spelling of 143740 in words is "one hundred forty-three thousand, seven hundred forty", and thus it is an iban number.