143112973 has 2 divisors, whose sum is σ = 143112974. Its totient is φ = 143112972.

The previous prime is 143112971. The next prime is 143113007. The reversal of 143112973 is 379211341.

143112973 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100040004 + 43072969 = 10002^2 + 6563^2 .

It is a cyclic number.

It is not a de Polignac number, because 143112973 - 2¹ = 143112971 is a prime.

It is a super-3 number, since 3×143112973³ (a number of 25 digits) contains 333 as substring.

Together with 143112971, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (143112971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71556486 + 71556487.

It is an arithmetic number, because the mean of its divisors is an integer number (71556487).

Almost surely, 2^143112973 is an apocalyptic number.

It is an amenable number.

143112973 is a deficient number, since it is larger than the sum of its proper divisors (1).

143112973 is an equidigital number, since it uses as much as digits as its factorization.

143112973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 143112973 is about 11962.9834489562. The cubic root of 143112973 is about 523.0698260510.

The spelling of 143112973 in words is "one hundred forty-three million, one hundred twelve thousand, nine hundred seventy-three".