150021242 has 12 divisors (see below), whose sum is σ = 261771930. Its totient is φ = 64294776.

The previous prime is 150021233. The next prime is 150021253. The reversal of 150021242 is 242120051.

It can be written as a sum of positive squares in only one way, i.e., 144456361 + 5564881 = 12019^2 + 2359^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 150021242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 765317 + ... + 765512.

Almost surely, 2^150021242 is an apocalyptic number.

150021242 is a deficient number, since it is larger than the sum of its proper divisors (111750688).

150021242 is a wasteful number, since it uses less digits than its factorization.

150021242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530845 (or 1530838 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 150021242 is about 12248.3158842349. The cubic root of 150021242 is about 531.3543645112.

Adding to 150021242 its reverse (242120051), we get a palindrome (392141293).

The spelling of 150021242 in words is "one hundred fifty million, twenty-one thousand, two hundred forty-two".