140531132 has 48 divisors (see below), whose sum is σ = 287179200. Its totient is φ = 58931712.

The previous prime is 140531123. The next prime is 140531137. The reversal of 140531132 is 231135041.

It is a super-2 number, since 2×140531132² = 39497998122402848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140531137) 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, 402494 + ... + 402842.

It is an arithmetic number, because the mean of its divisors is an integer number (5982900).

Almost surely, 2^140531132 is an apocalyptic number.

It is an amenable number.

140531132 is an abundant number, since it is smaller than the sum of its proper divisors (146648068).

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

140531132 is a wasteful number, since it uses less digits than its factorization.

140531132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 630 (or 628 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 140531132 is about 11854.5827425515. The cubic root of 140531132 is about 519.9052243445.

Adding to 140531132 its reverse (231135041), we get a palindrome (371666173).

The spelling of 140531132 in words is "one hundred forty million, five hundred thirty-one thousand, one hundred thirty-two".