150421636 has 6 divisors (see below), whose sum is σ = 263237870. Its totient is φ = 75210816.

The previous prime is 150421619. The next prime is 150421639. The reversal of 150421636 is 636124051.

It can be written as a sum of positive squares in only one way, i.e., 127916100 + 22505536 = 11310^2 + 4744^2 .

It is not an unprimeable number, because it can be changed into a prime (150421639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18802701 + ... + 18802708.

Almost surely, 2^150421636 is an apocalyptic number.

It is an amenable number.

150421636 is a deficient number, since it is larger than the sum of its proper divisors (112816234).

150421636 is a wasteful number, since it uses less digits than its factorization.

150421636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37605413 (or 37605411 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 150421636 is about 12264.6498523195. The cubic root of 150421636 is about 531.8266578681.

Adding to 150421636 its reverse (636124051), we get a palindrome (786545687).

The spelling of 150421636 in words is "one hundred fifty million, four hundred twenty-one thousand, six hundred thirty-six".