140421012223169 has 2 divisors, whose sum is σ = 140421012223170. Its totient is φ = 140421012223168.

The previous prime is 140421012223153. The next prime is 140421012223321. The reversal of 140421012223169 is 961322210124041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132545484865600 + 7875527357569 = 11512840^2 + 2806337^2 .

It is a cyclic number.

It is not a de Polignac number, because 140421012223169 - 2⁴ = 140421012223153 is a prime.

It is a super-2 number, since 2×140421012223169² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (140421012223139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70210506111584 + 70210506111585.

It is an arithmetic number, because the mean of its divisors is an integer number (70210506111585).

Almost surely, 2^{140421012223169} is an apocalyptic number.

It is an amenable number.

140421012223169 is a deficient number, since it is larger than the sum of its proper divisors (1).

140421012223169 is an equidigital number, since it uses as much as digits as its factorization.

140421012223169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The spelling of 140421012223169 in words is "one hundred forty trillion, four hundred twenty-one billion, twelve million, two hundred twenty-three thousand, one hundred sixty-nine".