143423071 has 12 divisors (see below), whose sum is σ = 158123880. Its totient is φ = 129013680.

The previous prime is 143423057. The next prime is 143423089. The reversal of 143423071 is 170324341.

It is not a de Polignac number, because 143423071 - 2⁷ = 143422943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143423011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 116085 + ... + 117313.

It is an arithmetic number, because the mean of its divisors is an integer number (13176990).

Almost surely, 2^143423071 is an apocalyptic number.

143423071 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

143423071 is a deficient number, since it is larger than the sum of its proper divisors (14700809).

143423071 is a wasteful number, since it uses less digits than its factorization.

143423071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1446 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 143423071 is about 11975.9371658338. The cubic root of 143423071 is about 523.4473503949.

The spelling of 143423071 in words is "one hundred forty-three million, four hundred twenty-three thousand, seventy-one".