140148839 has 2 divisors, whose sum is σ = 140148840. Its totient is φ = 140148838.

The previous prime is 140148823. The next prime is 140148847. The reversal of 140148839 is 938841041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140148839 - 2⁴ = 140148823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140148889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70074419 + 70074420.

It is an arithmetic number, because the mean of its divisors is an integer number (70074420).

Almost surely, 2^140148839 is an apocalyptic number.

140148839 is a deficient number, since it is larger than the sum of its proper divisors (1).

140148839 is an equidigital number, since it uses as much as digits as its factorization.

140148839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 140148839 is about 11838.4474911198. The cubic root of 140148839 is about 519.4333558783.

The spelling of 140148839 in words is "one hundred forty million, one hundred forty-eight thousand, eight hundred thirty-nine".