150355121 has 4 divisors (see below), whose sum is σ = 171834432. Its totient is φ = 128875812.

The previous prime is 150355109. The next prime is 150355147. The reversal of 150355121 is 121553051.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121553051 = 19 ⋅6397529.

It is a cyclic number.

It is not a de Polignac number, because 150355121 - 2¹⁸ = 150092977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (150354121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10739645 + ... + 10739658.

It is an arithmetic number, because the mean of its divisors is an integer number (42958608).

Almost surely, 2^150355121 is an apocalyptic number.

It is an amenable number.

150355121 is a deficient number, since it is larger than the sum of its proper divisors (21479311).

150355121 is an equidigital number, since it uses as much as digits as its factorization.

150355121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21479310.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 150355121 is about 12261.9378974125. The cubic root of 150355121 is about 531.7482567674.

The spelling of 150355121 in words is "one hundred fifty million, three hundred fifty-five thousand, one hundred twenty-one".