140532140 has 48 divisors (see below), whose sum is σ = 338564352. Its totient is φ = 47998656.

The previous prime is 140532137. The next prime is 140532163. The reversal of 140532140 is 41235041.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 37847 + ... + 41393.

It is an arithmetic number, because the mean of its divisors is an integer number (7053424).

Almost surely, 2^140532140 is an apocalyptic number.

140532140 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 140532140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (169282176).

140532140 is an abundant number, since it is smaller than the sum of its proper divisors (198032212).

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

140532140 is a wasteful number, since it uses less digits than its factorization.

140532140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3846 (or 3844 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 140532140 is about 11854.6252576790. The cubic root of 140532140 is about 519.9064673982.

Adding to 140532140 its reverse (41235041), we get a palindrome (181767181).

The spelling of 140532140 in words is "one hundred forty million, five hundred thirty-two thousand, one hundred forty".