150224021 has 4 divisors (see below), whose sum is σ = 150248652. Its totient is φ = 150199392.

The previous prime is 150223993. The next prime is 150224057. The reversal of 150224021 is 120422051.

150224021 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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 120422051 = 9613 ⋅12527.

It can be written as a sum of positive squares in 2 ways, for example, as 44422225 + 105801796 = 6665^2 + 10286^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150224021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150224071) 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, 4361 + ... + 17873.

It is an arithmetic number, because the mean of its divisors is an integer number (37562163).

Almost surely, 2^150224021 is an apocalyptic number.

It is an amenable number.

150224021 is a deficient number, since it is larger than the sum of its proper divisors (24631).

150224021 is a wasteful number, since it uses less digits than its factorization.

150224021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24630.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 150224021 is about 12256.5909208066. The cubic root of 150224021 is about 531.5936617275.

Adding to 150224021 its reverse (120422051), we get a palindrome (270646072).

The spelling of 150224021 in words is "one hundred fifty million, two hundred twenty-four thousand, twenty-one".