150020897 has 4 divisors (see below), whose sum is σ = 161560980. Its totient is φ = 138480816.

The previous prime is 150020867. The next prime is 150020953. The reversal of 150020897 is 798020051.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 62710561 + 87310336 = 7919^2 + 9344^2 .

It is a cyclic number.

It is not a de Polignac number, because 150020897 - 2¹⁴ = 150004513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150020867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5770022 + ... + 5770047.

It is an arithmetic number, because the mean of its divisors is an integer number (40390245).

Almost surely, 2^150020897 is an apocalyptic number.

It is an amenable number.

150020897 is a deficient number, since it is larger than the sum of its proper divisors (11540083).

150020897 is a wasteful number, since it uses less digits than its factorization.

150020897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11540082.

The product of its (nonzero) digits is 5040, while the sum is 32.

The square root of 150020897 is about 12248.3018006579. The cubic root of 150020897 is about 531.3539571968.

The spelling of 150020897 in words is "one hundred fifty million, twenty thousand, eight hundred ninety-seven".