68148499 has 2 divisors, whose sum is σ = 68148500. Its totient is φ = 68148498.

The previous prime is 68148473. The next prime is 68148527. The reversal of 68148499 is 99484186.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68148499 - 2⁵ = 68148467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (68148799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34074249 + 34074250.

It is an arithmetic number, because the mean of its divisors is an integer number (34074250).

Almost surely, 2^68148499 is an apocalyptic number.

68148499 is a deficient number, since it is larger than the sum of its proper divisors (1).

68148499 is an equidigital number, since it uses as much as digits as its factorization.

68148499 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 49.

The square root of 68148499 is about 8255.2104152468. The cubic root of 68148499 is about 408.4624126513.

The spelling of 68148499 in words is "sixty-eight million, one hundred forty-eight thousand, four hundred ninety-nine".