140512343 has 4 divisors (see below), whose sum is σ = 140666160. Its totient is φ = 140358528.

The previous prime is 140512321. The next prime is 140512349. The reversal of 140512343 is 343215041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343215041 = 13 ⋅26401157.

It is a cyclic number.

It is not a de Polignac number, because 140512343 - 2¹⁴ = 140495959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140512349) 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, 75530 + ... + 77367.

It is an arithmetic number, because the mean of its divisors is an integer number (35166540).

Almost surely, 2^140512343 is an apocalyptic number.

140512343 is a deficient number, since it is larger than the sum of its proper divisors (153817).

140512343 is an equidigital number, since it uses as much as digits as its factorization.

140512343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153816.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 140512343 is about 11853.7902377257. The cubic root of 140512343 is about 519.8820528842.

Adding to 140512343 its reverse (343215041), we get a palindrome (483727384).

The spelling of 140512343 in words is "one hundred forty million, five hundred twelve thousand, three hundred forty-three".