150097561 has 4 divisors (see below), whose sum is σ = 151425972. Its totient is φ = 148769152.

The previous prime is 150097559. The next prime is 150097579. The reversal of 150097561 is 165790051.

150097561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 165790051 = 7 ⋅23684293.

It can be written as a sum of positive squares in 2 ways, for example, as 62094400 + 88003161 = 7880^2 + 9381^2 .

It is a cyclic number.

It is not a de Polignac number, because 150097561 - 2¹ = 150097559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150097501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 664036 + ... + 664261.

It is an arithmetic number, because the mean of its divisors is an integer number (37856493).

Almost surely, 2^150097561 is an apocalyptic number.

It is an amenable number.

150097561 is a deficient number, since it is larger than the sum of its proper divisors (1328411).

150097561 is a wasteful number, since it uses less digits than its factorization.

150097561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328410.

The product of its (nonzero) digits is 9450, while the sum is 34.

The square root of 150097561 is about 12251.4309776450. The cubic root of 150097561 is about 531.4444529958. Note that the first 4 decimals are identical.

The spelling of 150097561 in words is "one hundred fifty million, ninety-seven thousand, five hundred sixty-one".