150212251 has 4 divisors (see below), whose sum is σ = 171671152. Its totient is φ = 128753352.

The previous prime is 150212243. The next prime is 150212263. The reversal of 150212251 is 152212051.

150212251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 152212051 = 359 ⋅423989.

It is not a de Polignac number, because 150212251 - 2³ = 150212243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (150212281) 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, 10729440 + ... + 10729453.

It is an arithmetic number, because the mean of its divisors is an integer number (42917788).

Almost surely, 2^150212251 is an apocalyptic number.

150212251 is a deficient number, since it is larger than the sum of its proper divisors (21458901).

150212251 is an equidigital number, since it uses as much as digits as its factorization.

150212251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21458900.

The product of its (nonzero) digits is 200, while the sum is 19.

The square root of 150212251 is about 12256.1107615752. The cubic root of 150212251 is about 531.5797779718.

Subtracting from 150212251 its product of nonzero digits (200), we obtain a palindrome (150212051).

The spelling of 150212251 in words is "one hundred fifty million, two hundred twelve thousand, two hundred fifty-one".