149231966497 has 2 divisors, whose sum is σ = 149231966498. Its totient is φ = 149231966496.

The previous prime is 149231966483. The next prime is 149231966567. The reversal of 149231966497 is 794669132941.

149231966497 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143179748881 + 6052217616 = 378391^2 + 77796^2 .

It is a cyclic number.

It is not a de Polignac number, because 149231966497 - 2¹⁹ = 149231442209 is a prime.

It is not a weakly prime, because it can be changed into another prime (149231966797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 74615983248 + 74615983249.

It is an arithmetic number, because the mean of its divisors is an integer number (74615983249).

Almost surely, 2^149231966497 is an apocalyptic number.

It is an amenable number.

149231966497 is a deficient number, since it is larger than the sum of its proper divisors (1).

149231966497 is an equidigital number, since it uses as much as digits as its factorization.

149231966497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17635968, while the sum is 61.

The spelling of 149231966497 in words is "one hundred forty-nine billion, two hundred thirty-one million, nine hundred sixty-six thousand, four hundred ninety-seven".