150521345 has 16 divisors (see below), whose sum is σ = 194778192. Its totient is φ = 111006720.

The previous prime is 150521341. The next prime is 150521351. The reversal of 150521345 is 543125051.

It can be written as a sum of positive squares in 8 ways, for example, as 14868736 + 135652609 = 3856^2 + 11647^2 .

It is not a de Polignac number, because 150521345 - 2² = 150521341 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (150521341) 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 15 ways as a sum of consecutive naturals, for example, 84989 + ... + 86741.

It is an arithmetic number, because the mean of its divisors is an integer number (12173637).

Almost surely, 2^150521345 is an apocalyptic number.

It is an amenable number.

150521345 is a deficient number, since it is larger than the sum of its proper divisors (44256847).

150521345 is a wasteful number, since it uses less digits than its factorization.

150521345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3092.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 150521345 is about 12268.7140727951. The cubic root of 150521345 is about 531.9441413924.

Adding to 150521345 its reverse (543125051), we get a palindrome (693646396).

The spelling of 150521345 in words is "one hundred fifty million, five hundred twenty-one thousand, three hundred forty-five".