140520606 has 16 divisors (see below), whose sum is σ = 297573264. Its totient is φ = 44084864.

The previous prime is 140520581. The next prime is 140520619. The reversal of 140520606 is 606025041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688725 + ... + 688928.

It is an arithmetic number, because the mean of its divisors is an integer number (18598329).

Almost surely, 2^140520606 is an apocalyptic number.

140520606 is an abundant number, since it is smaller than the sum of its proper divisors (157052658).

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

140520606 is a wasteful number, since it uses less digits than its factorization.

140520606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377675.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 140520606 is about 11854.1387709104. The cubic root of 140520606 is about 519.8922434509.

Adding to 140520606 its reverse (606025041), we get a palindrome (746545647).

The spelling of 140520606 in words is "one hundred forty million, five hundred twenty thousand, six hundred six".