140921606 has 16 divisors (see below), whose sum is σ = 241917216. Its totient is φ = 60310656.

The previous prime is 140921591. The next prime is 140921623. The reversal of 140921606 is 606129041.

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, 3950 + ... + 17246.

It is an arithmetic number, because the mean of its divisors is an integer number (15119826).

Almost surely, 2^140921606 is an apocalyptic number.

140921606 is a deficient number, since it is larger than the sum of its proper divisors (100995610).

140921606 is a wasteful number, since it uses less digits than its factorization.

140921606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14063.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 140921606 is about 11871.0406452004. The cubic root of 140921606 is about 520.3863081082.

The spelling of 140921606 in words is "one hundred forty million, nine hundred twenty-one thousand, six hundred six".