140054839 has 2 divisors, whose sum is σ = 140054840. Its totient is φ = 140054838.

The previous prime is 140054819. The next prime is 140054881. The reversal of 140054839 is 938450041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140054839 - 2¹¹ = 140052791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140054819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70027419 + 70027420.

It is an arithmetic number, because the mean of its divisors is an integer number (70027420).

Almost surely, 2^140054839 is an apocalyptic number.

140054839 is a deficient number, since it is larger than the sum of its proper divisors (1).

140054839 is an equidigital number, since it uses as much as digits as its factorization.

140054839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 140054839 is about 11834.4767100198. The cubic root of 140054839 is about 519.3171992357.

The spelling of 140054839 in words is "one hundred forty million, fifty-four thousand, eight hundred thirty-nine".