140065073 has 4 divisors (see below), whose sum is σ = 141752688. Its totient is φ = 138377460.

The previous prime is 140065067. The next prime is 140065097. The reversal of 140065073 is 370560041.

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 140065073 - 2⁸ = 140064817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140065043) 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, 843683 + ... + 843848.

It is an arithmetic number, because the mean of its divisors is an integer number (35438172).

Almost surely, 2^140065073 is an apocalyptic number.

It is an amenable number.

140065073 is a deficient number, since it is larger than the sum of its proper divisors (1687615).

140065073 is an equidigital number, since it uses as much as digits as its factorization.

140065073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1687614.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 140065073 is about 11834.9090828785. The cubic root of 140065073 is about 519.3298480020.

The spelling of 140065073 in words is "one hundred forty million, sixty-five thousand, seventy-three".