168612949 has 2 divisors, whose sum is σ = 168612950. Its totient is φ = 168612948.

The previous prime is 168612907. The next prime is 168612971. The reversal of 168612949 is 949216861.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 158004900 + 10608049 = 12570^2 + 3257^2 .

It is a cyclic number.

It is not a de Polignac number, because 168612949 - 2²³ = 160224341 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 168612899 and 168612908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (168612979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84306474 + 84306475.

It is an arithmetic number, because the mean of its divisors is an integer number (84306475).

Almost surely, 2^168612949 is an apocalyptic number.

It is an amenable number.

168612949 is a deficient number, since it is larger than the sum of its proper divisors (1).

168612949 is an equidigital number, since it uses as much as digits as its factorization.

168612949 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 168612949 is about 12985.1048898344. The cubic root of 168612949 is about 552.4550842188.

The spelling of 168612949 in words is "one hundred sixty-eight million, six hundred twelve thousand, nine hundred forty-nine".