140117520 has 160 divisors (see below), whose sum is σ = 461399040. Its totient is φ = 35112960.

The previous prime is 140117513. The next prime is 140117539. The reversal of 140117520 is 25711041.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275026 + ... + 275534.

It is an arithmetic number, because the mean of its divisors is an integer number (2883744).

Almost surely, 2^140117520 is an apocalyptic number.

140117520 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 140117520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230699520).

140117520 is an abundant number, since it is smaller than the sum of its proper divisors (321281520).

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

140117520 is a wasteful number, since it uses less digits than its factorization.

140117520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593 (or 587 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 140117520 is about 11837.1246508601. The cubic root of 140117520 is about 519.3946604805.

Adding to 140117520 its reverse (25711041), we get a palindrome (165828561).

The spelling of 140117520 in words is "one hundred forty million, one hundred seventeen thousand, five hundred twenty".