150221145 has 16 divisors (see below), whose sum is σ = 245944512. Its totient is φ = 78254400.

The previous prime is 150221143. The next prime is 150221153. The reversal of 150221145 is 541122051.

It is not a de Polignac number, because 150221145 - 2¹ = 150221143 is a prime.

It is a super-2 number, since 2×150221145² = 45132784810222050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (150221143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115806 + ... + 117095.

It is an arithmetic number, because the mean of its divisors is an integer number (15371532).

Almost surely, 2^150221145 is an apocalyptic number.

150221145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

150221145 is a deficient number, since it is larger than the sum of its proper divisors (95723367).

150221145 is a wasteful number, since it uses less digits than its factorization.

150221145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232952.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 150221145 is about 12256.4735956147. The cubic root of 150221145 is about 531.5902692981.

Adding to 150221145 its reverse (541122051), we get a palindrome (691343196).

The spelling of 150221145 in words is "one hundred fifty million, two hundred twenty-one thousand, one hundred forty-five".