140531203 has 4 divisors (see below), whose sum is σ = 140559808. Its totient is φ = 140502600.

The previous prime is 140531179. The next prime is 140531233. The reversal of 140531203 is 302135041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 302135041 = 13 ⋅23241157.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140531203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140531233) 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, 4851 + ... + 17452.

It is an arithmetic number, because the mean of its divisors is an integer number (35139952).

Almost surely, 2^140531203 is an apocalyptic number.

140531203 is a deficient number, since it is larger than the sum of its proper divisors (28605).

140531203 is an equidigital number, since it uses as much as digits as its factorization.

140531203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28604.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 140531203 is about 11854.5857371736. The cubic root of 140531203 is about 519.9053119011.

Adding to 140531203 its reverse (302135041), we get a palindrome (442666244).

The spelling of 140531203 in words is "one hundred forty million, five hundred thirty-one thousand, two hundred three".