68253841 has 2 divisors, whose sum is σ = 68253842. Its totient is φ = 68253840.

The previous prime is 68253797. The next prime is 68253853. The reversal of 68253841 is 14835286.

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., 57988225 + 10265616 = 7615^2 + 3204^2 .

It is a cyclic number.

It is not a de Polignac number, because 68253841 - 2²³ = 59865233 is a prime.

It is a super-2 number, since 2×68253841² = 9317173622506562, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68253841.

It is not a weakly prime, because it can be changed into another prime (68250841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34126920 + 34126921.

It is an arithmetic number, because the mean of its divisors is an integer number (34126921).

Almost surely, 2^68253841 is an apocalyptic number.

It is an amenable number.

68253841 is a deficient number, since it is larger than the sum of its proper divisors (1).

68253841 is an equidigital number, since it uses as much as digits as its factorization.

68253841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 37.

The square root of 68253841 is about 8261.5882855538. The cubic root of 68253841 is about 408.6727674721.

The spelling of 68253841 in words is "sixty-eight million, two hundred fifty-three thousand, eight hundred forty-one".