140532212 has 12 divisors (see below), whose sum is σ = 246236676. Its totient is φ = 70178880.

The previous prime is 140532211. The next prime is 140532221. The reversal of 140532212 is 212235041.

It can be written as a sum of positive squares in 2 ways, for example, as 55413136 + 85119076 = 7444^2 + 9226^2 .

It is a super-2 number, since 2×140532212² = 39498605219225888, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140532211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18113 + ... + 24680.

It is an arithmetic number, because the mean of its divisors is an integer number (20519723).

Almost surely, 2^140532212 is an apocalyptic number.

It is an amenable number.

140532212 is a deficient number, since it is larger than the sum of its proper divisors (105704464).

140532212 is a wasteful number, since it uses less digits than its factorization.

140532212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43618 (or 43616 counting only the distinct ones).

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

The square root of 140532212 is about 11854.6282944679. The cubic root of 140532212 is about 519.9065561875.

Adding to 140532212 its reverse (212235041), we get a palindrome (352767253).

The spelling of 140532212 in words is "one hundred forty million, five hundred thirty-two thousand, two hundred twelve".