140377647 has 4 divisors (see below), whose sum is σ = 187170200. Its totient is φ = 93585096.

The previous prime is 140377631. The next prime is 140377709. The reversal of 140377647 is 746773041.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 140377647 - 2⁴ = 140377631 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 (140377547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23396272 + ... + 23396277.

It is an arithmetic number, because the mean of its divisors is an integer number (46792550).

Almost surely, 2^140377647 is an apocalyptic number.

140377647 is a deficient number, since it is larger than the sum of its proper divisors (46792553).

140377647 is an equidigital number, since it uses as much as digits as its factorization.

140377647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46792552.

The product of its (nonzero) digits is 98784, while the sum is 39.

The square root of 140377647 is about 11848.1073172047. The cubic root of 140377647 is about 519.7158790587.

The spelling of 140377647 in words is "one hundred forty million, three hundred seventy-seven thousand, six hundred forty-seven".