150221402 has 8 divisors (see below), whose sum is σ = 227399700. Its totient is φ = 74421504.

The previous prime is 150221399. The next prime is 150221411. The reversal of 150221402 is 204122051.

It can be written as a sum of positive squares in 2 ways, for example, as 129254161 + 20967241 = 11369^2 + 4579^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 344327 + ... + 344762.

Almost surely, 2^150221402 is an apocalyptic number.

150221402 is a deficient number, since it is larger than the sum of its proper divisors (77178298).

150221402 is a wasteful number, since it uses less digits than its factorization.

150221402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689200.

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 150221402 is about 12256.4840798656. The cubic root of 150221402 is about 531.5905724481.

Adding to 150221402 its reverse (204122051), we get a palindrome (354343453).

The spelling of 150221402 in words is "one hundred fifty million, two hundred twenty-one thousand, four hundred two".