152213225 has 6 divisors (see below), whose sum is σ = 188744430. Its totient is φ = 121770560.

The previous prime is 152213221. The next prime is 152213231. The reversal of 152213225 is 522312251.

It can be written as a sum of positive squares in 3 ways, for example, as 40615129 + 111598096 = 6373^2 + 10564^2 .

It is not a de Polignac number, because 152213225 - 2² = 152213221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152213225.

It is not an unprimeable number, because it can be changed into a prime (152213221) 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 5 ways as a sum of consecutive naturals, for example, 3044240 + ... + 3044289.

It is an arithmetic number, because the mean of its divisors is an integer number (31457405).

Almost surely, 2^152213225 is an apocalyptic number.

It is an amenable number.

152213225 is a deficient number, since it is larger than the sum of its proper divisors (36531205).

152213225 is an equidigital number, since it uses as much as digits as its factorization.

152213225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6088539 (or 6088534 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 152213225 is about 12337.4723910532. The cubic root of 152213225 is about 533.9297613668.

Adding to 152213225 its reverse (522312251), we get a palindrome (674525476).

The spelling of 152213225 in words is "one hundred fifty-two million, two hundred thirteen thousand, two hundred twenty-five".