150681636 has 72 divisors (see below), whose sum is σ = 441319424. Its totient is φ = 42456960.

The previous prime is 150681623. The next prime is 150681637. The reversal of 150681636 is 636186051.

It is a happy number.

150681636 is a `hidden beast` number, since 15 + 0 + 6 + 8 + 1 + 636 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 150681636.

It is not an unprimeable number, because it can be changed into a prime (150681637) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 14301 + ... + 22491.

Almost surely, 2^150681636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 150681636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220659712).

150681636 is an abundant number, since it is smaller than the sum of its proper divisors (290637788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

150681636 is a wasteful number, since it uses less digits than its factorization.

150681636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8281 (or 8276 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 150681636 is about 12275.2448448086. The cubic root of 150681636 is about 532.1328978101.

The spelling of 150681636 in words is "one hundred fifty million, six hundred eighty-one thousand, six hundred thirty-six".