140203455 has 24 divisors (see below), whose sum is σ = 260951472. Its totient is φ = 64092672.

The previous prime is 140203387. The next prime is 140203493. The reversal of 140203455 is 554302041.

It is not a de Polignac number, because 140203455 - 2⁹ = 140202943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94642 + ... + 96111.

It is an arithmetic number, because the mean of its divisors is an integer number (10872978).

Almost surely, 2^140203455 is an apocalyptic number.

140203455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

140203455 is a deficient number, since it is larger than the sum of its proper divisors (120748017).

140203455 is a wasteful number, since it uses less digits than its factorization.

140203455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190775 (or 190768 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 140203455 is about 11840.7539878168. The cubic root of 140203455 is about 519.5008215050.

Adding to 140203455 its reverse (554302041), we get a palindrome (694505496).

The spelling of 140203455 in words is "one hundred forty million, two hundred three thousand, four hundred fifty-five".