150513521 has 8 divisors (see below), whose sum is σ = 154740864. Its totient is φ = 146294640.

The previous prime is 150513511. The next prime is 150513523. The reversal of 150513521 is 125315051.

It is a happy number.

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 150513521 - 2⁶ = 150513457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150513523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55016 + ... + 57686.

It is an arithmetic number, because the mean of its divisors is an integer number (19342608).

Almost surely, 2^150513521 is an apocalyptic number.

It is an amenable number.

150513521 is a deficient number, since it is larger than the sum of its proper divisors (4227343).

150513521 is a wasteful number, since it uses less digits than its factorization.

150513521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4231.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 150513521 is about 12268.3952088283. The cubic root of 150513521 is about 531.9349245311.

Adding to 150513521 its reverse (125315051), we get a palindrome (275828572).

The spelling of 150513521 in words is "one hundred fifty million, five hundred thirteen thousand, five hundred twenty-one".