142307073 has 12 divisors (see below), whose sum is σ = 205704148. Its totient is φ = 94802400.

The previous prime is 142307071. The next prime is 142307171. The reversal of 142307073 is 370703241.

142307073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 89643024 + 52664049 = 9468^2 + 7257^2 .

It is not a de Polignac number, because 142307073 - 2¹ = 142307071 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (142307071) 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, 9423 + ... + 19323.

Almost surely, 2^142307073 is an apocalyptic number.

It is an amenable number.

142307073 is a deficient number, since it is larger than the sum of its proper divisors (63397075).

142307073 is a wasteful number, since it uses less digits than its factorization.

142307073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11504 (or 11501 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 27.

The square root of 142307073 is about 11929.2528265604. The cubic root of 142307073 is about 522.0861376327.

The spelling of 142307073 in words is "one hundred forty-two million, three hundred seven thousand, seventy-three".