140847609 has 24 divisors (see below), whose sum is σ = 219239328. Its totient is φ = 80196480.

The previous prime is 140847583. The next prime is 140847611. The reversal of 140847609 is 906748041.

It is a happy number.

140847609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 140847609 - 2⁷ = 140847481 is a prime.

It is a super-2 number, since 2×140847609² = 39676097922033762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (140847649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43569 + ... + 46689.

It is an arithmetic number, because the mean of its divisors is an integer number (9134972).

Almost surely, 2^140847609 is an apocalyptic number.

It is an amenable number.

140847609 is a deficient number, since it is larger than the sum of its proper divisors (78391719).

140847609 is a wasteful number, since it uses less digits than its factorization.

140847609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3445 (or 3438 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The square root of 140847609 is about 11867.9235336263. The cubic root of 140847609 is about 520.2952083622.

The spelling of 140847609 in words is "one hundred forty million, eight hundred forty-seven thousand, six hundred nine".