153168949 has 2 divisors, whose sum is σ = 153168950. Its totient is φ = 153168948.

The previous prime is 153168943. The next prime is 153168959. The reversal of 153168949 is 949861351.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118417924 + 34751025 = 10882^2 + 5895^2 .

It is an emirp because it is prime and its reverse (949861351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 153168949 - 2³ = 153168941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 153168899 and 153168908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (153168941) 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 as a sum of consecutive naturals, namely, 76584474 + 76584475.

It is an arithmetic number, because the mean of its divisors is an integer number (76584475).

Almost surely, 2^153168949 is an apocalyptic number.

It is an amenable number.

153168949 is a deficient number, since it is larger than the sum of its proper divisors (1).

153168949 is an equidigital number, since it uses as much as digits as its factorization.

153168949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 233280, while the sum is 46.

The square root of 153168949 is about 12376.1443511297. The cubic root of 153168949 is about 535.0449189291.

The spelling of 153168949 in words is "one hundred fifty-three million, one hundred sixty-eight thousand, nine hundred forty-nine".