358168649 has 2 divisors, whose sum is σ = 358168650. Its totient is φ = 358168648.

The previous prime is 358168633. The next prime is 358168651. The reversal of 358168649 is 946861853.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 302934025 + 55234624 = 17405^2 + 7432^2 .

It is a cyclic number.

It is not a de Polignac number, because 358168649 - 2⁴ = 358168633 is a prime.

It is a super-2 number, since 2×358168649² = 256569562252970402, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 358168651, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 358168597 and 358168606.

It is not a weakly prime, because it can be changed into another prime (358168619) 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 as a sum of consecutive naturals, namely, 179084324 + 179084325.

It is an arithmetic number, because the mean of its divisors is an integer number (179084325).

Almost surely, 2^358168649 is an apocalyptic number.

It is an amenable number.

358168649 is a deficient number, since it is larger than the sum of its proper divisors (1).

358168649 is an equidigital number, since it uses as much as digits as its factorization.

358168649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 50.

The square root of 358168649 is about 18925.3440919842. The cubic root of 358168649 is about 710.1703281096.

The spelling of 358168649 in words is "three hundred fifty-eight million, one hundred sixty-eight thousand, six hundred forty-nine".