140232643 has 8 divisors (see below), whose sum is σ = 149467680. Its totient is φ = 131107200.

The previous prime is 140232641. The next prime is 140232667. The reversal of 140232643 is 346232041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140232643 - 2¹ = 140232641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140232641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24748 + ... + 29881.

It is an arithmetic number, because the mean of its divisors is an integer number (18683460).

Almost surely, 2^140232643 is an apocalyptic number.

140232643 is a deficient number, since it is larger than the sum of its proper divisors (9235037).

140232643 is a wasteful number, since it uses less digits than its factorization.

140232643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54797.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 140232643 is about 11841.9864465384. The cubic root of 140232643 is about 519.5368694466.

Adding to 140232643 its reverse (346232041), we get a palindrome (486464684).

The spelling of 140232643 in words is "one hundred forty million, two hundred thirty-two thousand, six hundred forty-three".