140140232 has 16 divisors (see below), whose sum is σ = 263008140. Its totient is φ = 70004736.

The previous prime is 140140211. The next prime is 140140237. The reversal of 140140232 is 232041041.

It can be written as a sum of positive squares in 2 ways, for example, as 109956196 + 30184036 = 10486^2 + 5494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 140140232.

It is not an unprimeable number, because it can be changed into a prime (140140237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628 + ... + 16820.

Almost surely, 2^140140232 is an apocalyptic number.

It is an amenable number.

140140232 is a deficient number, since it is larger than the sum of its proper divisors (122867908).

140140232 is a wasteful number, since it uses less digits than its factorization.

140140232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16352 (or 16348 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 140140232 is about 11838.0839665885. The cubic root of 140140232 is about 519.4227222918.

Adding to 140140232 its reverse (232041041), we get a palindrome (372181273).

The spelling of 140140232 in words is "one hundred forty million, one hundred forty thousand, two hundred thirty-two".