140747047 has 4 divisors (see below), whose sum is σ = 160853776. Its totient is φ = 120640320.

The previous prime is 140746997. The next prime is 140747053. The reversal of 140747047 is 740747041.

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

It is a cyclic number.

It is not a de Polignac number, because 140747047 - 2¹⁵ = 140714279 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 (140747147) 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, 10053354 + ... + 10053367.

It is an arithmetic number, because the mean of its divisors is an integer number (40213444).

Almost surely, 2^140747047 is an apocalyptic number.

140747047 is a deficient number, since it is larger than the sum of its proper divisors (20106729).

140747047 is an equidigital number, since it uses as much as digits as its factorization.

140747047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20106728.

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 140747047 is about 11863.6860629401. The cubic root of 140747047 is about 520.1713525527.

The spelling of 140747047 in words is "one hundred forty million, seven hundred forty-seven thousand, forty-seven".