143040229 has 4 divisors (see below), whose sum is σ = 143079840. Its totient is φ = 143000620.

The previous prime is 143040199. The next prime is 143040257. The reversal of 143040229 is 922040341.

143040229 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 922040341 = 19 ⋅48528439.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-143040229 is a prime.

It is a super-2 number, since 2×143040229² = 40921014224744882, 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 (143040299) 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, 13777 + ... + 21814.

It is an arithmetic number, because the mean of its divisors is an integer number (35769960).

Almost surely, 2^143040229 is an apocalyptic number.

It is an amenable number.

143040229 is a deficient number, since it is larger than the sum of its proper divisors (39611).

143040229 is an equidigital number, since it uses as much as digits as its factorization.

143040229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39610.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 143040229 is about 11959.9426838091. The cubic root of 143040229 is about 522.9811859616.

The spelling of 143040229 in words is "one hundred forty-three million, forty thousand, two hundred twenty-nine".