140453243 has 4 divisors (see below), whose sum is σ = 160518000. Its totient is φ = 120388488.

The previous prime is 140453227. The next prime is 140453267. The reversal of 140453243 is 342354041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140453243 - 2⁴ = 140453227 is a prime.

It is a super-2 number, since 2×140453243² = 39454226938434098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140453213) 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, 10032368 + ... + 10032381.

It is an arithmetic number, because the mean of its divisors is an integer number (40129500).

Almost surely, 2^140453243 is an apocalyptic number.

140453243 is a deficient number, since it is larger than the sum of its proper divisors (20064757).

140453243 is an equidigital number, since it uses as much as digits as its factorization.

140453243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20064756.

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 140453243 is about 11851.2971020053. The cubic root of 140453243 is about 519.8091545718.

The spelling of 140453243 in words is "one hundred forty million, four hundred fifty-three thousand, two hundred forty-three".