140503243 has 2 divisors, whose sum is σ = 140503244. Its totient is φ = 140503242.

The previous prime is 140503219. The next prime is 140503247. The reversal of 140503243 is 342305041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140503243 - 2²¹ = 138406091 is a prime.

It is a super-2 number, since 2×140503243² = 39482322587034098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140503247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70251621 + 70251622.

It is an arithmetic number, because the mean of its divisors is an integer number (70251622).

Almost surely, 2^140503243 is an apocalyptic number.

140503243 is a deficient number, since it is larger than the sum of its proper divisors (1).

140503243 is an equidigital number, since it uses as much as digits as its factorization.

140503243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 140503243 is about 11853.4063880388. The cubic root of 140503243 is about 519.8708296025.

Adding to 140503243 its reverse (342305041), we get a palindrome (482808284).

The spelling of 140503243 in words is "one hundred forty million, five hundred three thousand, two hundred forty-three".