150015021 has 16 divisors (see below), whose sum is σ = 228078144. Its totient is φ = 86886144.

The previous prime is 150015017. The next prime is 150015049. The reversal of 150015021 is 120510051.

It is not a de Polignac number, because 150015021 - 2² = 150015017 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150015091) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 112471 + ... + 113796.

It is an arithmetic number, because the mean of its divisors is an integer number (14254884).

Almost surely, 2^150015021 is an apocalyptic number.

It is an amenable number.

150015021 is a deficient number, since it is larger than the sum of its proper divisors (78063123).

150015021 is a wasteful number, since it uses less digits than its factorization.

150015021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226300.

The product of its (nonzero) digits is 50, while the sum is 15.

The square root of 150015021 is about 12248.0619283216. The cubic root of 150015021 is about 531.3470197708.

Adding to 150015021 its reverse (120510051), we get a palindrome (270525072).

It can be divided in two parts, 15001502 and 1, that added together give a triangular number (15001503 = T₅₄₇₇).

The spelling of 150015021 in words is "one hundred fifty million, fifteen thousand, twenty-one".