150121 has 8 divisors (see below), whose sum is σ = 160704. Its totient is φ = 139920.

The previous prime is 150107. The next prime is 150131. The reversal of 150121 is 121051.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 150121 - 2⁵ = 150089 is a prime.

It is a Duffinian number.

150121 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 150098 and 150107.

It is not an unprimeable number, because it can be changed into a prime (150131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1350 + ... + 1456.

It is an arithmetic number, because the mean of its divisors is an integer number (20088).

2¹⁵⁰¹²¹ is an apocalyptic number.

It is an amenable number.

150121 is a deficient number, since it is larger than the sum of its proper divisors (10583).

150121 is a wasteful number, since it uses less digits than its factorization.

150121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 150121 is about 387.4545134593. The cubic root of 150121 is about 53.1472114734.

Adding to 150121 its reverse (121051), we get a palindrome (271172).

The spelling of 150121 in words is "one hundred fifty thousand, one hundred twenty-one".