150440121 has 12 divisors (see below), whose sum is σ = 234018148. Its totient is φ = 92578464.

The previous prime is 150440107. The next prime is 150440137. The reversal of 150440121 is 121044051.

150440121 is a `hidden beast` number, since 1 + 504 + 40 + 121 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 29550096 + 120890025 = 5436^2 + 10995^2 .

It is not a de Polignac number, because 150440121 - 2⁶ = 150440057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 150440094 and 150440103.

It is not an unprimeable number, because it can be changed into a prime (150440161) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 642790 + ... + 643023.

Almost surely, 2^150440121 is an apocalyptic number.

It is an amenable number.

150440121 is a deficient number, since it is larger than the sum of its proper divisors (83578027).

150440121 is a wasteful number, since it uses less digits than its factorization.

150440121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285832 (or 1285829 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 150440121 is about 12265.4034177437. The cubic root of 150440121 is about 531.8484419974.

Adding to 150440121 its reverse (121044051), we get a palindrome (271484172).

The spelling of 150440121 in words is "one hundred fifty million, four hundred forty thousand, one hundred twenty-one".