150836221 has 8 divisors (see below), whose sum is σ = 157793400. Its totient is φ = 143996160.

The previous prime is 150836183. The next prime is 150836227. The reversal of 150836221 is 122638051.

It can be written as a sum of positive squares in 4 ways, for example, as 36132121 + 114704100 = 6011^2 + 10710^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-150836221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 150836221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150836227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26640 + ... + 31801.

It is an arithmetic number, because the mean of its divisors is an integer number (19724175).

Almost surely, 2^150836221 is an apocalyptic number.

It is an amenable number.

150836221 is a deficient number, since it is larger than the sum of its proper divisors (6957179).

150836221 is an equidigital number, since it uses as much as digits as its factorization.

150836221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58559.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 150836221 is about 12281.5398464525. The cubic root of 150836221 is about 532.3148081653.

The spelling of 150836221 in words is "one hundred fifty million, eight hundred thirty-six thousand, two hundred twenty-one".