140142547 has 8 divisors (see below), whose sum is σ = 146109744. Its totient is φ = 134298528.

The previous prime is 140142533. The next prime is 140142571. The reversal of 140142547 is 745241041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140142547 - 2²³ = 131753939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140142517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28468 + ... + 33025.

It is an arithmetic number, because the mean of its divisors is an integer number (18263718).

Almost surely, 2^140142547 is an apocalyptic number.

140142547 is a deficient number, since it is larger than the sum of its proper divisors (5967197).

140142547 is an equidigital number, since it uses as much as digits as its factorization.

140142547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61589.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 140142547 is about 11838.1817438321. The cubic root of 140142547 is about 519.4255824197.

Adding to 140142547 its reverse (745241041), we get a palindrome (885383588).

It can be divided in two parts, 14014 and 2547, that added together give a palindrome (16561).

The spelling of 140142547 in words is "one hundred forty million, one hundred forty-two thousand, five hundred forty-seven".