140144532 has 144 divisors (see below), whose sum is σ = 400946112. Its totient is φ = 37647360.

The previous prime is 140144509. The next prime is 140144539. The reversal of 140144532 is 235441041.

140144532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140144539) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 809998 + ... + 810170.

It is an arithmetic number, because the mean of its divisors is an integer number (2784348).

Almost surely, 2^140144532 is an apocalyptic number.

140144532 is a gapful number since it is divisible by the number (12) 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 140144532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200473056).

140144532 is an abundant number, since it is smaller than the sum of its proper divisors (260801580).

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

140144532 is a wasteful number, since it uses less digits than its factorization.

140144532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 140144532 is about 11838.2655824238. The cubic root of 140144532 is about 519.4280348153.

Adding to 140144532 its reverse (235441041), we get a palindrome (375585573).

The spelling of 140144532 in words is "one hundred forty million, one hundred forty-four thousand, five hundred thirty-two".