140946658417 has 2 divisors, whose sum is σ = 140946658418. Its totient is φ = 140946658416.

The previous prime is 140946658399. The next prime is 140946658471. The reversal of 140946658417 is 714856649041.

Together with next prime (140946658471) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104380040241 + 36566618176 = 323079^2 + 191224^2 .

It is a cyclic number.

It is not a de Polignac number, because 140946658417 - 2¹⁵ = 140946625649 is a prime.

It is not a weakly prime, because it can be changed into another prime (140946358417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70473329208 + 70473329209.

It is an arithmetic number, because the mean of its divisors is an integer number (70473329209).

Almost surely, 2^140946658417 is an apocalyptic number.

It is an amenable number.

140946658417 is a deficient number, since it is larger than the sum of its proper divisors (1).

140946658417 is an equidigital number, since it uses as much as digits as its factorization.

140946658417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5806080, while the sum is 55.

The spelling of 140946658417 in words is "one hundred forty billion, nine hundred forty-six million, six hundred fifty-eight thousand, four hundred seventeen".