150380308521 has 9 divisors (see below), whose sum is σ = 217217681629. Its totient is φ = 100252763436.

The previous prime is 150380308487. The next prime is 150380308541. The reversal of 150380308521 is 125803083051.

The square root of 150380308521 is 387789.

It is a perfect power (a square), and thus also a powerful number.

150380308521 is a `hidden beast` number, since 1 + 50 + 3 + 80 + 3 + 0 + 8 + 521 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 150380308521 - 2⁹ = 150380308009 is a prime.

It is a super-2 number, since 2×150380308521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150380308541) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1098736 + ... + 1227998.

Almost surely, 2^150380308521 is an apocalyptic number.

150380308521 is the 387789-th square number.

150380308521 is the 193895-th centered octagonal number.

It is an amenable number.

150380308521 is a deficient number, since it is larger than the sum of its proper divisors (66837373108).

150380308521 is an frugal number, since it uses more digits than its factorization.

150380308521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258532 (or 129266 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

Multiplying 150380308521 by its sum of digits (36), we get a square (5413691106756 = 2326734²).

The spelling of 150380308521 in words is "one hundred fifty billion, three hundred eighty million, three hundred eight thousand, five hundred twenty-one".