153213241 has 4 divisors (see below), whose sum is σ = 153245412. Its totient is φ = 153181072.

The previous prime is 153213239. The next prime is 153213289. The reversal of 153213241 is 142312351.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82737216 + 70476025 = 9096^2 + 8395^2 .

It is a cyclic number.

It is not a de Polignac number, because 153213241 - 2¹ = 153213239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (153213341) 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 3 ways as a sum of consecutive naturals, for example, 7366 + ... + 18991.

It is an arithmetic number, because the mean of its divisors is an integer number (38311353).

Almost surely, 2^153213241 is an apocalyptic number.

It is an amenable number.

153213241 is a deficient number, since it is larger than the sum of its proper divisors (32171).

153213241 is an equidigital number, since it uses as much as digits as its factorization.

153213241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32170.

The product of its digits is 720, while the sum is 22.

The square root of 153213241 is about 12377.9336320728. The cubic root of 153213241 is about 535.0964870957.

Adding to 153213241 its reverse (142312351), we get a palindrome (295525592).

The spelling of 153213241 in words is "one hundred fifty-three million, two hundred thirteen thousand, two hundred forty-one".