140011636 has 6 divisors (see below), whose sum is σ = 245020370. Its totient is φ = 70005816.

The previous prime is 140011583. The next prime is 140011687. The reversal of 140011636 is 636110041.

It is a happy number.

140011636 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 74304400 + 65707236 = 8620^2 + 8106^2 .

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 as a sum of consecutive naturals, namely, 17501451 + ... + 17501458.

Almost surely, 2^140011636 is an apocalyptic number.

It is an amenable number.

140011636 is a deficient number, since it is larger than the sum of its proper divisors (105008734).

140011636 is a wasteful number, since it uses less digits than its factorization.

140011636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35002913 (or 35002911 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 140011636 is about 11832.6512667280. The cubic root of 140011636 is about 519.2637954679.

Adding to 140011636 its reverse (636110041), we get a palindrome (776121677).

The spelling of 140011636 in words is "one hundred forty million, eleven thousand, six hundred thirty-six".