140844091 has 2 divisors, whose sum is σ = 140844092. Its totient is φ = 140844090.

The previous prime is 140844079. The next prime is 140844103. The reversal of 140844091 is 190448041.

It is a balanced prime because it is at equal distance from previous prime (140844079) and next prime (140844103).

It is a cyclic number.

It is not a de Polignac number, because 140844091 - 2⁹ = 140843579 is a prime.

It is not a weakly prime, because it can be changed into another prime (140844491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70422045 + 70422046.

It is an arithmetic number, because the mean of its divisors is an integer number (70422046).

Almost surely, 2^140844091 is an apocalyptic number.

140844091 is a deficient number, since it is larger than the sum of its proper divisors (1).

140844091 is an equidigital number, since it uses as much as digits as its factorization.

140844091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 140844091 is about 11867.7753180619. The cubic root of 140844091 is about 520.2908764610.

The spelling of 140844091 in words is "one hundred forty million, eight hundred forty-four thousand, ninety-one".