140122459 has 2 divisors, whose sum is σ = 140122460. Its totient is φ = 140122458.

The previous prime is 140122457. The next prime is 140122481. The reversal of 140122459 is 954221041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 140122459 - 2¹ = 140122457 is a prime.

Together with 140122457, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (140122457) 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, 70061229 + 70061230.

It is an arithmetic number, because the mean of its divisors is an integer number (70061230).

Almost surely, 2^140122459 is an apocalyptic number.

140122459 is a deficient number, since it is larger than the sum of its proper divisors (1).

140122459 is an equidigital number, since it uses as much as digits as its factorization.

140122459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 140122459 is about 11837.3332723211. Note that the first 3 decimals coincide. The cubic root of 140122459 is about 519.4007631199.

It can be divided in two parts, 14012 and 2459, that added together give a triangular number (16471 = T₁₈₁).

The spelling of 140122459 in words is "one hundred forty million, one hundred twenty-two thousand, four hundred fifty-nine".