405344144040139 has 2 divisors, whose sum is σ = 405344144040140. Its totient is φ = 405344144040138.

The previous prime is 405344144040089. The next prime is 405344144040203. The reversal of 405344144040139 is 931040441443504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405344144040139 - 2¹³ = 405344144031947 is a prime.

It is not a weakly prime, because it can be changed into another prime (405344144040439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202672072020069 + 202672072020070.

It is an arithmetic number, because the mean of its divisors is an integer number (202672072020070).

Almost surely, 2^{405344144040139} is an apocalyptic number.

405344144040139 is a deficient number, since it is larger than the sum of its proper divisors (1).

405344144040139 is an equidigital number, since it uses as much as digits as its factorization.

405344144040139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 46.

The spelling of 405344144040139 in words is "four hundred five trillion, three hundred forty-four billion, one hundred forty-four million, forty thousand, one hundred thirty-nine".