150221425 has 6 divisors (see below), whose sum is σ = 186274598. Its totient is φ = 120177120.

The previous prime is 150221419. The next prime is 150221431. The reversal of 150221425 is 524122051.

It is an interprime number because it is at equal distance from previous prime (150221419) and next prime (150221431).

It can be written as a sum of positive squares in 3 ways, for example, as 43243776 + 106977649 = 6576^2 + 10343^2 .

It is not a de Polignac number, because 150221425 - 2⁹ = 150220913 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 150221396 and 150221405.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 3004404 + ... + 3004453.

Almost surely, 2^150221425 is an apocalyptic number.

It is an amenable number.

150221425 is a deficient number, since it is larger than the sum of its proper divisors (36053173).

150221425 is an equidigital number, since it uses as much as digits as its factorization.

150221425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6008867 (or 6008862 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 150221425 is about 12256.4850181445. The cubic root of 150221425 is about 531.5905995783.

Adding to 150221425 its reverse (524122051), we get a palindrome (674343476).

The spelling of 150221425 in words is "one hundred fifty million, two hundred twenty-one thousand, four hundred twenty-five".