153668241 has 12 divisors (see below), whose sum is σ = 222347268. Its totient is φ = 102269184.

The previous prime is 153668237. The next prime is 153668279. The reversal of 153668241 is 142866351.

It is a happy number.

153668241 is a `hidden beast` number, since 1 + 536 + 6 + 82 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 67568400 + 86099841 = 8220^2 + 9279^2 .

It is not a de Polignac number, because 153668241 - 2² = 153668237 is a prime.

It is a super-2 number, since 2×153668241² = 47227856584068162, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 153668196 and 153668205.

It is not an unprimeable number, because it can be changed into a prime (153668341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9060 + ... + 19733.

It is an arithmetic number, because the mean of its divisors is an integer number (18528939).

Almost surely, 2^153668241 is an apocalyptic number.

It is an amenable number.

153668241 is a deficient number, since it is larger than the sum of its proper divisors (68679027).

153668241 is a wasteful number, since it uses less digits than its factorization.

153668241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29392 (or 29389 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 153668241 is about 12396.2994881537. The cubic root of 153668241 is about 535.6256586948.

The spelling of 153668241 in words is "one hundred fifty-three million, six hundred sixty-eight thousand, two hundred forty-one".