140134839 has 8 divisors (see below), whose sum is σ = 201219312. Its totient is φ = 86236800.

The previous prime is 140134829. The next prime is 140134847. The reversal of 140134839 is 938431041.

140134839 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 140134839 - 2⁷ = 140134711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140134829) 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, 1796562 + ... + 1796639.

It is an arithmetic number, because the mean of its divisors is an integer number (25152414).

Almost surely, 2^140134839 is an apocalyptic number.

140134839 is a deficient number, since it is larger than the sum of its proper divisors (61084473).

140134839 is a wasteful number, since it uses less digits than its factorization.

140134839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593217.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 140134839 is about 11837.8561826033. The cubic root of 140134839 is about 519.4160592452.

The spelling of 140134839 in words is "one hundred forty million, one hundred thirty-four thousand, eight hundred thirty-nine".