655012241 has 8 divisors (see below), whose sum is σ = 729722280. Its totient is φ = 583777152.

The previous prime is 655012229. The next prime is 655012271. The reversal of 655012241 is 142210556.

It can be written as a sum of positive squares in 4 ways, for example, as 138768400 + 516243841 = 11780^2 + 22721^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 655012241 - 2⁶ = 655012177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 655012241.

It is not an unprimeable number, because it can be changed into a prime (655012201) 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 7 ways as a sum of consecutive naturals, for example, 868340 + ... + 869093.

It is an arithmetic number, because the mean of its divisors is an integer number (91215285).

Almost surely, 2^655012241 is an apocalyptic number.

It is an amenable number.

655012241 is a deficient number, since it is larger than the sum of its proper divisors (74710039).

655012241 is a wasteful number, since it uses less digits than its factorization.

655012241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737475.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 655012241 is about 25593.2069307463. The cubic root of 655012241 is about 868.4599702901.

Adding to 655012241 its reverse (142210556), we get a palindrome (797222797).

The spelling of 655012241 in words is "six hundred fifty-five million, twelve thousand, two hundred forty-one".