150138323 has 4 divisors (see below), whose sum is σ = 158040360. Its totient is φ = 142236288.

The previous prime is 150138311. The next prime is 150138337. The reversal of 150138323 is 323831051.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 150138323 - 2¹⁸ = 149876179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150138292 and 150138301.

It is not an unprimeable number, because it can be changed into a prime (150138343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3950990 + ... + 3951027.

It is an arithmetic number, because the mean of its divisors is an integer number (39510090).

Almost surely, 2^150138323 is an apocalyptic number.

150138323 is a deficient number, since it is larger than the sum of its proper divisors (7902037).

150138323 is an equidigital number, since it uses as much as digits as its factorization.

150138323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7902036.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 150138323 is about 12253.0944254911. The cubic root of 150138323 is about 531.4925567712.

Adding to 150138323 its reverse (323831051), we get a palindrome (473969374).

The spelling of 150138323 in words is "one hundred fifty million, one hundred thirty-eight thousand, three hundred twenty-three".