140421323377 has 2 divisors, whose sum is σ = 140421323378. Its totient is φ = 140421323376.

The previous prime is 140421323291. The next prime is 140421323401. The reversal of 140421323377 is 773323124041.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 130534799616 + 9886523761 = 361296^2 + 99431^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140421323377 is a prime.

It is not a weakly prime, because it can be changed into another prime (140421303377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70210661688 + 70210661689.

It is an arithmetic number, because the mean of its divisors is an integer number (70210661689).

Almost surely, 2^140421323377 is an apocalyptic number.

It is an amenable number.

140421323377 is a deficient number, since it is larger than the sum of its proper divisors (1).

140421323377 is an equidigital number, since it uses as much as digits as its factorization.

140421323377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84672, while the sum is 37.

The spelling of 140421323377 in words is "one hundred forty billion, four hundred twenty-one million, three hundred twenty-three thousand, three hundred seventy-seven".