140505050 has 36 divisors (see below), whose sum is σ = 304012350. Its totient is φ = 48172320.

The previous prime is 140505041. The next prime is 140505077. The reversal of 140505050 is 50505041.

It can be written as a sum of positive squares in 3 ways, for example, as 109223401 + 31281649 = 10451^2 + 5593^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 26225 + ... + 31124.

Almost surely, 2^140505050 is an apocalyptic number.

140505050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140505050 is an abundant number, since it is smaller than the sum of its proper divisors (163507300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140505050 is a wasteful number, since it uses less digits than its factorization.

140505050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57375 (or 57363 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 140505050 is about 11853.4826106086. The cubic root of 140505050 is about 519.8730582642.

Subtracting from 140505050 its reverse (50505041), we obtain a palindrome (90000009).

The spelling of 140505050 in words is "one hundred forty million, five hundred five thousand, fifty".