143741 has 4 divisors (see below), whose sum is σ = 154812. Its totient is φ = 132672.

The previous prime is 143729. The next prime is 143743. The reversal of 143741 is 147341.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24025 + 119716 = 155^2 + 346^2 .

It is a cyclic number.

It is not a de Polignac number, because 143741 - 2⁶ = 143677 is a prime.

It is a super-2 number, since 2×143741² = 41322950162, which contains 22 as substring.

It is a Duffinian number.

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, 5516 + ... + 5541.

It is an arithmetic number, because the mean of its divisors is an integer number (38703).

2¹⁴³⁷⁴¹ is an apocalyptic number.

It is an amenable number.

143741 is a deficient number, since it is larger than the sum of its proper divisors (11071).

143741 is a wasteful number, since it uses less digits than its factorization.

143741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11070.

The product of its digits is 336, while the sum is 20.

The square root of 143741 is about 379.1319031683. The cubic root of 143741 is about 52.3833843945.

Subtracting 143741 from its reverse (147341), we obtain a square (3600 = 60²).

The spelling of 143741 in words is "one hundred forty-three thousand, seven hundred forty-one", and thus it is an iban number.