142673473 has 2 divisors, whose sum is σ = 142673474. Its totient is φ = 142673472.

The previous prime is 142673471. The next prime is 142673477. The reversal of 142673473 is 374376241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130233744 + 12439729 = 11412^2 + 3527^2 .

It is an emirp because it is prime and its reverse (374376241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142673473 - 2¹ = 142673471 is a prime.

Together with 142673471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (142673471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71336736 + 71336737.

It is an arithmetic number, because the mean of its divisors is an integer number (71336737).

Almost surely, 2^142673473 is an apocalyptic number.

It is an amenable number.

142673473 is a deficient number, since it is larger than the sum of its proper divisors (1).

142673473 is an equidigital number, since it uses as much as digits as its factorization.

142673473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 37.

The square root of 142673473 is about 11944.6001607421. The cubic root of 142673473 is about 522.5338277741.

The spelling of 142673473 in words is "one hundred forty-two million, six hundred seventy-three thousand, four hundred seventy-three".