140577647 has 4 divisors (see below), whose sum is σ = 160660176. Its totient is φ = 120495120.

The previous prime is 140577631. The next prime is 140577659. The reversal of 140577647 is 746775041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 746775041 = 223 ⋅3348767.

It is a cyclic number.

It is not a de Polignac number, because 140577647 - 2⁴ = 140577631 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 (140577617) 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, 10041254 + ... + 10041267.

It is an arithmetic number, because the mean of its divisors is an integer number (40165044).

Almost surely, 2^140577647 is an apocalyptic number.

140577647 is a deficient number, since it is larger than the sum of its proper divisors (20082529).

140577647 is an equidigital number, since it uses as much as digits as its factorization.

140577647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20082528.

The product of its (nonzero) digits is 164640, while the sum is 41.

The square root of 140577647 is about 11856.5444797378. The cubic root of 140577647 is about 519.9625799009.

The spelling of 140577647 in words is "one hundred forty million, five hundred seventy-seven thousand, six hundred forty-seven".