143071073 has 4 divisors (see below), whose sum is σ = 143370240. Its totient is φ = 142771908.

The previous prime is 143071069. The next prime is 143071127. The reversal of 143071073 is 370170341.

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.

It is a cyclic number.

It is not a de Polignac number, because 143071073 - 2² = 143071069 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143071043) 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, 148865 + ... + 149822.

It is an arithmetic number, because the mean of its divisors is an integer number (35842560).

Almost surely, 2^143071073 is an apocalyptic number.

It is an amenable number.

143071073 is a deficient number, since it is larger than the sum of its proper divisors (299167).

143071073 is an equidigital number, since it uses as much as digits as its factorization.

143071073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299166.

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 143071073 is about 11961.2320853665. The cubic root of 143071073 is about 523.0187736913.

The spelling of 143071073 in words is "one hundred forty-three million, seventy-one thousand, seventy-three".