140004243 has 12 divisors (see below), whose sum is σ = 211021200. Its totient is φ = 89277936.

The previous prime is 140004239. The next prime is 140004247. The reversal of 140004243 is 342400041.

It is an interprime number because it is at equal distance from previous prime (140004239) and next prime (140004247).

It is not a de Polignac number, because 140004243 - 2² = 140004239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140004247) 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, 337968 + ... + 338381.

It is an arithmetic number, because the mean of its divisors is an integer number (17585100).

Almost surely, 2^140004243 is an apocalyptic number.

140004243 is a deficient number, since it is larger than the sum of its proper divisors (71016957).

140004243 is a wasteful number, since it uses less digits than its factorization.

140004243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676378 (or 676375 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 140004243 is about 11832.3388643159. The cubic root of 140004243 is about 519.2546557875.

Adding to 140004243 its reverse (342400041), we get a palindrome (482404284).

The spelling of 140004243 in words is "one hundred forty million, four thousand, two hundred forty-three".