150196561 has 2 divisors, whose sum is σ = 150196562. Its totient is φ = 150196560.

The previous prime is 150196559. The next prime is 150196583. The reversal of 150196561 is 165691051.

150196561 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., 127577025 + 22619536 = 11295^2 + 4756^2 .

It is an emirp because it is prime and its reverse (165691051) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 150196561 - 2¹ = 150196559 is a prime.

Together with 150196559, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (150196531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75098280 + 75098281.

It is an arithmetic number, because the mean of its divisors is an integer number (75098281).

Almost surely, 2^150196561 is an apocalyptic number.

It is an amenable number.

150196561 is a deficient number, since it is larger than the sum of its proper divisors (1).

150196561 is an equidigital number, since it uses as much as digits as its factorization.

150196561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 34.

The square root of 150196561 is about 12255.4706559969. The cubic root of 150196561 is about 531.5612691017.

The spelling of 150196561 in words is "one hundred fifty million, one hundred ninety-six thousand, five hundred sixty-one".