140169594949 has 2 divisors, whose sum is σ = 140169594950. Its totient is φ = 140169594948.

The previous prime is 140169594869. The next prime is 140169594997. The reversal of 140169594949 is 949495961041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118623758724 + 21545836225 = 344418^2 + 146785^2 .

It is an emirp because it is prime and its reverse (949495961041) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140169594949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140169594049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70084797474 + 70084797475.

It is an arithmetic number, because the mean of its divisors is an integer number (70084797475).

Almost surely, 2^140169594949 is an apocalyptic number.

It is an amenable number.

140169594949 is a deficient number, since it is larger than the sum of its proper divisors (1).

140169594949 is an equidigital number, since it uses as much as digits as its factorization.

140169594949 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12597120, while the sum is 61.

The spelling of 140169594949 in words is "one hundred forty billion, one hundred sixty-nine million, five hundred ninety-four thousand, nine hundred forty-nine".