150421812 has 12 divisors (see below), whose sum is σ = 350984256. Its totient is φ = 50140600.

The previous prime is 150421801. The next prime is 150421819. The reversal of 150421812 is 218124051.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150421819) 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 3 ways as a sum of consecutive naturals, for example, 6267564 + ... + 6267587.

It is an arithmetic number, because the mean of its divisors is an integer number (29248688).

Almost surely, 2^150421812 is an apocalyptic number.

150421812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

150421812 is an abundant number, since it is smaller than the sum of its proper divisors (200562444).

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

150421812 is a wasteful number, since it uses less digits than its factorization.

150421812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12535158 (or 12535156 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 24.

The square root of 150421812 is about 12264.6570274101. The cubic root of 150421812 is about 531.8268652883.

Adding to 150421812 its reverse (218124051), we get a palindrome (368545863).

The spelling of 150421812 in words is "one hundred fifty million, four hundred twenty-one thousand, eight hundred twelve".