150219313921 has 4 divisors (see below), whose sum is σ = 150413647572. Its totient is φ = 150024980272.

The previous prime is 150219313919. The next prime is 150219313949. The reversal of 150219313921 is 129313912051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 129313912051 = 79687 ⋅1622773.

It can be written as a sum of positive squares in 2 ways, for example, as 76778313921 + 73441000000 = 277089^2 + 271000^2 .

It is a cyclic number.

It is not a de Polignac number, because 150219313921 - 2¹ = 150219313919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150219313121) 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, 97165666 + ... + 97167211.

It is an arithmetic number, because the mean of its divisors is an integer number (37603411893).

Almost surely, 2^150219313921 is an apocalyptic number.

It is an amenable number.

150219313921 is a deficient number, since it is larger than the sum of its proper divisors (194333651).

150219313921 is an equidigital number, since it uses as much as digits as its factorization.

150219313921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194333650.

The product of its (nonzero) digits is 14580, while the sum is 37.

The spelling of 150219313921 in words is "one hundred fifty billion, two hundred nineteen million, three hundred thirteen thousand, nine hundred twenty-one".