140232641 has 2 divisors, whose sum is σ = 140232642. Its totient is φ = 140232640.

The previous prime is 140232637. The next prime is 140232667. The reversal of 140232641 is 146232041.

140232641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137007025 + 3225616 = 11705^2 + 1796^2 .

It is an emirp because it is prime and its reverse (146232041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140232641 - 2² = 140232637 is a prime.

It is not a weakly prime, because it can be changed into another prime (140232611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70116320 + 70116321.

It is an arithmetic number, because the mean of its divisors is an integer number (70116321).

Almost surely, 2^140232641 is an apocalyptic number.

It is an amenable number.

140232641 is a deficient number, since it is larger than the sum of its proper divisors (1).

140232641 is an equidigital number, since it uses as much as digits as its factorization.

140232641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 140232641 is about 11841.9863620931. The cubic root of 140232641 is about 519.5368669767.

Adding to 140232641 its reverse (146232041), we get a palindrome (286464682).

It can be divided in two parts, 1402 and 32641, that added together give a palindrome (34043).

The spelling of 140232641 in words is "one hundred forty million, two hundred thirty-two thousand, six hundred forty-one".