149419422661 has 2 divisors, whose sum is σ = 149419422662. Its totient is φ = 149419422660.

The previous prime is 149419422653. The next prime is 149419422667. The reversal of 149419422661 is 166224914941.

It is a happy number.

149419422661 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120882077761 + 28537344900 = 347681^2 + 168930^2 .

It is a cyclic number.

It is not a de Polignac number, because 149419422661 - 2³ = 149419422653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (149419422667) 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, 74709711330 + 74709711331.

It is an arithmetic number, because the mean of its divisors is an integer number (74709711331).

Almost surely, 2^149419422661 is an apocalyptic number.

It is an amenable number.

149419422661 is a deficient number, since it is larger than the sum of its proper divisors (1).

149419422661 is an equidigital number, since it uses as much as digits as its factorization.

149419422661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 49.

The spelling of 149419422661 in words is "one hundred forty-nine billion, four hundred nineteen million, four hundred twenty-two thousand, six hundred sixty-one".