140269447 has 4 divisors (see below), whose sum is σ = 140316880. Its totient is φ = 140222016.

The previous prime is 140269421. The next prime is 140269463. The reversal of 140269447 is 744962041.

It is a happy number.

140269447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 140269447 - 2¹¹ = 140267399 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 (140261447) 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, 18963 + ... + 25300.

It is an arithmetic number, because the mean of its divisors is an integer number (35079220).

Almost surely, 2^140269447 is an apocalyptic number.

140269447 is a deficient number, since it is larger than the sum of its proper divisors (47433).

140269447 is an equidigital number, since it uses as much as digits as its factorization.

140269447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47432.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 140269447 is about 11843.5403068508. The cubic root of 140269447 is about 519.5823162175.

The spelling of 140269447 in words is "one hundred forty million, two hundred sixty-nine thousand, four hundred forty-seven".