140165140 has 24 divisors (see below), whose sum is σ = 295452360. Its totient is φ = 55855488.

The previous prime is 140165093. The next prime is 140165141. The reversal of 140165140 is 41561041.

It can be written as a sum of positive squares in 4 ways, for example, as 8282884 + 131882256 = 2878^2 + 11484^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140165141) 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, 7647 + ... + 18406.

It is an arithmetic number, because the mean of its divisors is an integer number (12310515).

Almost surely, 2^140165140 is an apocalyptic number.

140165140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140165140 is an abundant number, since it is smaller than the sum of its proper divisors (155287220).

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

140165140 is a wasteful number, since it uses less digits than its factorization.

140165140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26331 (or 26329 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 140165140 is about 11839.1359482016. The cubic root of 140165140 is about 519.4534938852.

The spelling of 140165140 in words is "one hundred forty million, one hundred sixty-five thousand, one hundred forty".