150121305 has 48 divisors (see below), whose sum is σ = 280120464. Its totient is φ = 74096640.

The previous prime is 150121277. The next prime is 150121319. The reversal of 150121305 is 503121051.

It can be written as a sum of positive squares in 8 ways, for example, as 9801 + 150111504 = 99^2 + 12252^2 .

It is not a de Polignac number, because 150121305 - 2⁵ = 150121273 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45057 + ... + 48273.

It is an arithmetic number, because the mean of its divisors is an integer number (5835843).

Almost surely, 2^150121305 is an apocalyptic number.

150121305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

150121305 is a deficient number, since it is larger than the sum of its proper divisors (129999159).

150121305 is a wasteful number, since it uses less digits than its factorization.

150121305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306 (or 3303 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 150121305 is about 12252.3999689857. The cubic root of 150121305 is about 531.4724746631.

Adding to 150121305 its reverse (503121051), we get a palindrome (653242356).

It can be divided in two parts, 150121 and 305, that added together give a triangular number (150426 = T₅₄₈).

The spelling of 150121305 in words is "one hundred fifty million, one hundred twenty-one thousand, three hundred five".