140249959 has 2 divisors, whose sum is σ = 140249960. Its totient is φ = 140249958.

The previous prime is 140249951. The next prime is 140249969. The reversal of 140249959 is 959942041.

It is a weak prime.

It is an emirp because it is prime and its reverse (959942041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140249959 - 2³ = 140249951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140249951) 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, 70124979 + 70124980.

It is an arithmetic number, because the mean of its divisors is an integer number (70124980).

Almost surely, 2^140249959 is an apocalyptic number.

140249959 is a deficient number, since it is larger than the sum of its proper divisors (1).

140249959 is an equidigital number, since it uses as much as digits as its factorization.

140249959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 43.

The square root of 140249959 is about 11842.7175513055. The cubic root of 140249959 is about 519.5582527945.

The spelling of 140249959 in words is "one hundred forty million, two hundred forty-nine thousand, nine hundred fifty-nine".