150195561 has 16 divisors (see below), whose sum is σ = 213668928. Its totient is φ = 93516800.

The previous prime is 150195547. The next prime is 150195581. The reversal of 150195561 is 165591051.

It is a cyclic number.

It is not a de Polignac number, because 150195561 - 2¹⁰ = 150194537 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (150195581) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4560 + ... + 17921.

It is an arithmetic number, because the mean of its divisors is an integer number (13354308).

Almost surely, 2^150195561 is an apocalyptic number.

It is an amenable number.

150195561 is a deficient number, since it is larger than the sum of its proper divisors (63473367).

150195561 is a wasteful number, since it uses less digits than its factorization.

150195561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22632.

The product of its (nonzero) digits is 6750, while the sum is 33.

The square root of 150195561 is about 12255.4298578222. The cubic root of 150195561 is about 531.5600893977.

The spelling of 150195561 in words is "one hundred fifty million, one hundred ninety-five thousand, five hundred sixty-one".