140211649 has 8 divisors (see below), whose sum is σ = 142208000. Its totient is φ = 138220992.

The previous prime is 140211647. The next prime is 140211661. The reversal of 140211649 is 946112041.

140211649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140211649 - 2¹ = 140211647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140211647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78832 + ... + 80590.

It is an arithmetic number, because the mean of its divisors is an integer number (17776000).

Almost surely, 2^140211649 is an apocalyptic number.

It is an amenable number.

140211649 is a deficient number, since it is larger than the sum of its proper divisors (1996351).

140211649 is a wasteful number, since it uses less digits than its factorization.

140211649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2847.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 140211649 is about 11841.0999911326. The cubic root of 140211649 is about 519.5109418139.

The spelling of 140211649 in words is "one hundred forty million, two hundred eleven thousand, six hundred forty-nine".