140352647 has 16 divisors (see below), whose sum is σ = 149610240. Its totient is φ = 131389632.

The previous prime is 140352637. The next prime is 140352661. The reversal of 140352647 is 746253041.

140352647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 140352647 - 2⁴ = 140352631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140352607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 300308 + ... + 300774.

It is an arithmetic number, because the mean of its divisors is an integer number (9350640).

Almost surely, 2^140352647 is an apocalyptic number.

140352647 is a deficient number, since it is larger than the sum of its proper divisors (9257593).

140352647 is a wasteful number, since it uses less digits than its factorization.

140352647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 742.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 140352647 is about 11847.0522493994. The cubic root of 140352647 is about 519.6850249813.

The spelling of 140352647 in words is "one hundred forty million, three hundred fifty-two thousand, six hundred forty-seven".