140348384261 has 2 divisors, whose sum is σ = 140348384262. Its totient is φ = 140348384260.

The previous prime is 140348384179. The next prime is 140348384269. The reversal of 140348384261 is 162483843041.

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., 133476969025 + 6871415236 = 365345^2 + 82894^2 .

It is a cyclic number.

It is not a de Polignac number, because 140348384261 - 2²⁶ = 140281275397 is a prime.

It is a super-2 number, since 2×140348384261² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140348384269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70174192130 + 70174192131.

It is an arithmetic number, because the mean of its divisors is an integer number (70174192131).

Almost surely, 2^140348384261 is an apocalyptic number.

It is an amenable number.

140348384261 is a deficient number, since it is larger than the sum of its proper divisors (1).

140348384261 is an equidigital number, since it uses as much as digits as its factorization.

140348384261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 442368, while the sum is 44.

The spelling of 140348384261 in words is "one hundred forty billion, three hundred forty-eight million, three hundred eighty-four thousand, two hundred sixty-one".