68434153 has 2 divisors, whose sum is σ = 68434154. Its totient is φ = 68434152.

The previous prime is 68434141. The next prime is 68434187. The reversal of 68434153 is 35143486.

It is a happy number.

It is an a-pointer prime, because the next prime (68434187) can be obtained adding 68434153 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60964864 + 7469289 = 7808^2 + 2733^2 .

It is a cyclic number.

It is not a de Polignac number, because 68434153 - 2²¹ = 66337001 is a prime.

It is not a weakly prime, because it can be changed into another prime (68434193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34217076 + 34217077.

It is an arithmetic number, because the mean of its divisors is an integer number (34217077).

Almost surely, 2^68434153 is an apocalyptic number.

It is an amenable number.

68434153 is a deficient number, since it is larger than the sum of its proper divisors (1).

68434153 is an equidigital number, since it uses as much as digits as its factorization.

68434153 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 34.

The square root of 68434153 is about 8272.4937594416. The cubic root of 68434153 is about 409.0323262809.

The spelling of 68434153 in words is "sixty-eight million, four hundred thirty-four thousand, one hundred fifty-three".