68540203 has 2 divisors, whose sum is σ = 68540204. Its totient is φ = 68540202.

The previous prime is 68540179. The next prime is 68540221. The reversal of 68540203 is 30204586.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68540203 - 2¹³ = 68532011 is a prime.

It is not a weakly prime, because it can be changed into another prime (68540273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34270101 + 34270102.

It is an arithmetic number, because the mean of its divisors is an integer number (34270102).

Almost surely, 2^68540203 is an apocalyptic number.

68540203 is a deficient number, since it is larger than the sum of its proper divisors (1).

68540203 is an equidigital number, since it uses as much as digits as its factorization.

68540203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 68540203 is about 8278.9010744180. The cubic root of 68540203 is about 409.2435049030.

Adding to 68540203 its reverse (30204586), we get a palindrome (98744789).

The spelling of 68540203 in words is "sixty-eight million, five hundred forty thousand, two hundred three".