140164520 has 64 divisors (see below), whose sum is σ = 339768000. Its totient is φ = 51867648.

The previous prime is 140164499. The next prime is 140164529. The reversal of 140164520 is 25461041.

140164520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (140164529) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30536 + ... + 34824.

It is an arithmetic number, because the mean of its divisors is an integer number (5308875).

Almost surely, 2^140164520 is an apocalyptic number.

140164520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 140164520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169884000).

140164520 is an abundant number, since it is smaller than the sum of its proper divisors (199603480).

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

140164520 is a wasteful number, since it uses less digits than its factorization.

140164520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4362 (or 4358 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 140164520 is about 11839.1097638294. The cubic root of 140164520 is about 519.4527279752.

The spelling of 140164520 in words is "one hundred forty million, one hundred sixty-four thousand, five hundred twenty".