140120999 has 2 divisors, whose sum is σ = 140121000. Its totient is φ = 140120998.

The previous prime is 140120993. The next prime is 140121049. The reversal of 140120999 is 999021041.

It is a weak prime.

It is an emirp because it is prime and its reverse (999021041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 140120999 - 2¹² = 140116903 is a prime.

It is a Sophie Germain 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 (140120993) 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, 70060499 + 70060500.

It is an arithmetic number, because the mean of its divisors is an integer number (70060500).

Almost surely, 2^140120999 is an apocalyptic number.

140120999 is a deficient number, since it is larger than the sum of its proper divisors (1).

140120999 is an equidigital number, since it uses as much as digits as its factorization.

140120999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 140120999 is about 11837.2716028652. The cubic root of 140120999 is about 519.3989591555.

The spelling of 140120999 in words is "one hundred forty million, one hundred twenty thousand, nine hundred ninety-nine".