150300221 has 4 divisors (see below), whose sum is σ = 151788444. Its totient is φ = 148812000.

The previous prime is 150300217. The next prime is 150300223. The reversal of 150300221 is 122003051.

It is a happy number.

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 127125625 + 23174596 = 11275^2 + 4814^2 .

It is a cyclic number.

It is not a de Polignac number, because 150300221 - 2² = 150300217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150300196 and 150300205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150300223) 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, 743960 + ... + 744161.

It is an arithmetic number, because the mean of its divisors is an integer number (37947111).

Almost surely, 2^150300221 is an apocalyptic number.

It is an amenable number.

150300221 is a deficient number, since it is larger than the sum of its proper divisors (1488223).

150300221 is a wasteful number, since it uses less digits than its factorization.

150300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488222.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 150300221 is about 12259.6990582967. The cubic root of 150300221 is about 531.6835288243.

Adding to 150300221 its reverse (122003051), we get a palindrome (272303272).

The spelling of 150300221 in words is "one hundred fifty million, three hundred thousand, two hundred twenty-one".