140640050 has 12 divisors (see below), whose sum is σ = 261590586. Its totient is φ = 56256000.

The previous prime is 140640047. The next prime is 140640067. The reversal of 140640050 is 50046041.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 123854641 + 16785409 = 11129^2 + 4097^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1406351 + ... + 1406450.

Almost surely, 2^140640050 is an apocalyptic number.

140640050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

140640050 is a deficient number, since it is larger than the sum of its proper divisors (120950536).

140640050 is a wasteful number, since it uses less digits than its factorization.

140640050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812813 (or 2812808 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140640050 is about 11859.1757723714. The cubic root of 140640050 is about 520.0395063673.

Adding to 140640050 its reverse (50046041), we get a palindrome (190686091).

The spelling of 140640050 in words is "one hundred forty million, six hundred forty thousand, fifty".