150721516 has 12 divisors (see below), whose sum is σ = 287741160. Its totient is φ = 68509760.

The previous prime is 150721513. The next prime is 150721523. The reversal of 150721516 is 615127051.

It is not an unprimeable number, because it can be changed into a prime (150721511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1712701 + ... + 1712788.

It is an arithmetic number, because the mean of its divisors is an integer number (23978430).

Almost surely, 2^150721516 is an apocalyptic number.

It is an amenable number.

150721516 is a deficient number, since it is larger than the sum of its proper divisors (137019644).

150721516 is a wasteful number, since it uses less digits than its factorization.

150721516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3425504 (or 3425502 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 150721516 is about 12276.8691448594. The cubic root of 150721516 is about 532.1798391375.

Adding to 150721516 its reverse (615127051), we get a palindrome (765848567).

The spelling of 150721516 in words is "one hundred fifty million, seven hundred twenty-one thousand, five hundred sixteen".