150144421 has 4 divisors (see below), whose sum is σ = 171593632. Its totient is φ = 128695212.

The previous prime is 150144361. The next prime is 150144487. The reversal of 150144421 is 124441051.

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.

It is a cyclic number.

It is not a de Polignac number, because 150144421 - 2¹⁵ = 150111653 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 150144392 and 150144401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150145421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10724595 + ... + 10724608.

It is an arithmetic number, because the mean of its divisors is an integer number (42898408).

Almost surely, 2^150144421 is an apocalyptic number.

It is an amenable number.

150144421 is a deficient number, since it is larger than the sum of its proper divisors (21449211).

150144421 is an equidigital number, since it uses as much as digits as its factorization.

150144421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21449210.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 150144421 is about 12253.3432580663. The cubic root of 150144421 is about 531.4997523530.

Adding to 150144421 its reverse (124441051), we get a palindrome (274585472).

The spelling of 150144421 in words is "one hundred fifty million, one hundred forty-four thousand, four hundred twenty-one".