150421521 has 8 divisors (see below), whose sum is σ = 207478080. Its totient is φ = 96822992.

The previous prime is 150421511. The next prime is 150421529. The reversal of 150421521 is 125124051.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 150421521 - 2¹⁰ = 150420497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (150421529) 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 7 ways as a sum of consecutive naturals, for example, 864405 + ... + 864578.

It is an arithmetic number, because the mean of its divisors is an integer number (25934760).

Almost surely, 2^150421521 is an apocalyptic number.

It is an amenable number.

150421521 is a deficient number, since it is larger than the sum of its proper divisors (57056559).

150421521 is a wasteful number, since it uses less digits than its factorization.

150421521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729015.

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

The square root of 150421521 is about 12264.6451640478. The cubic root of 150421521 is about 531.8265223378.

Adding to 150421521 its reverse (125124051), we get a palindrome (275545572).

The spelling of 150421521 in words is "one hundred fifty million, four hundred twenty-one thousand, five hundred twenty-one".