140044379 has 2 divisors, whose sum is σ = 140044380. Its totient is φ = 140044378.

The previous prime is 140044367. The next prime is 140044381. The reversal of 140044379 is 973440041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140044379 - 2⁸ = 140044123 is a prime.

It is a super-2 number, since 2×140044379² = 39224856178991282, which contains 22 as substring.

Together with 140044381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (140044319) 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, 70022189 + 70022190.

It is an arithmetic number, because the mean of its divisors is an integer number (70022190).

Almost surely, 2^140044379 is an apocalyptic number.

140044379 is a deficient number, since it is larger than the sum of its proper divisors (1).

140044379 is an equidigital number, since it uses as much as digits as its factorization.

140044379 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 140044379 is about 11834.0347726378. The cubic root of 140044379 is about 519.3042705068.

The spelling of 140044379 in words is "one hundred forty million, forty-four thousand, three hundred seventy-nine".