140603312261 has 2 divisors, whose sum is σ = 140603312262. Its totient is φ = 140603312260.

The previous prime is 140603312243. The next prime is 140603312263. The reversal of 140603312261 is 162213306041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 125940524161 + 14662788100 = 354881^2 + 121090^2 .

It is a cyclic number.

It is not a de Polignac number, because 140603312261 - 2¹⁸ = 140603050117 is a prime.

Together with 140603312263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140603312263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70301656130 + 70301656131.

It is an arithmetic number, because the mean of its divisors is an integer number (70301656131).

Almost surely, 2^140603312261 is an apocalyptic number.

It is an amenable number.

140603312261 is a deficient number, since it is larger than the sum of its proper divisors (1).

140603312261 is an equidigital number, since it uses as much as digits as its factorization.

140603312261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 29.

The spelling of 140603312261 in words is "one hundred forty billion, six hundred three million, three hundred twelve thousand, two hundred sixty-one".