140464243 has 8 divisors (see below), whose sum is σ = 146772000. Its totient is φ = 134173248.

The previous prime is 140464231. The next prime is 140464271. The reversal of 140464243 is 342464041.

140464243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140464243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140464213) 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, 14833 + ... + 22381.

It is an arithmetic number, because the mean of its divisors is an integer number (18346500).

Almost surely, 2^140464243 is an apocalyptic number.

140464243 is a deficient number, since it is larger than the sum of its proper divisors (6307757).

140464243 is an equidigital number, since it uses as much as digits as its factorization.

140464243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8381.

The product of its (nonzero) digits is 9216, while the sum is 28.

The square root of 140464243 is about 11851.7611771416. The cubic root of 140464243 is about 519.8227243343.

The spelling of 140464243 in words is "one hundred forty million, four hundred sixty-four thousand, two hundred forty-three".