140243073 has 8 divisors (see below), whose sum is σ = 187282368. Its totient is φ = 93349584.

The previous prime is 140243069. The next prime is 140243111. The reversal of 140243073 is 370342041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 140243073 - 2² = 140243069 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140243023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34186 + ... + 38067.

It is an arithmetic number, because the mean of its divisors is an integer number (23410296).

Almost surely, 2^140243073 is an apocalyptic number.

It is an amenable number.

140243073 is a deficient number, since it is larger than the sum of its proper divisors (47039295).

140243073 is an equidigital number, since it uses as much as digits as its factorization.

140243073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72903.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 140243073 is about 11842.4268205465. The cubic root of 140243073 is about 519.5497495557.

The spelling of 140243073 in words is "one hundred forty million, two hundred forty-three thousand, seventy-three".