140206164 has 24 divisors (see below), whose sum is σ = 373883328. Its totient is φ = 40058880.

The previous prime is 140206163. The next prime is 140206207. The reversal of 140206164 is 461602041.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140206163) by changing a digit.

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, 834477 + ... + 834644.

It is an arithmetic number, because the mean of its divisors is an integer number (15578472).

Almost surely, 2^140206164 is an apocalyptic number.

140206164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

140206164 is an abundant number, since it is smaller than the sum of its proper divisors (233677164).

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

140206164 is a wasteful number, since it uses less digits than its factorization.

140206164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669135 (or 1669133 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 140206164 is about 11840.8683803174. The cubic root of 140206164 is about 519.5041674013.

The spelling of 140206164 in words is "one hundred forty million, two hundred six thousand, one hundred sixty-four".