68453591 has 2 divisors, whose sum is σ = 68453592. Its totient is φ = 68453590.

The previous prime is 68453563. The next prime is 68453597. The reversal of 68453591 is 19535486.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 68453591 - 2⁶ = 68453527 is a prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68453597) 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, 34226795 + 34226796.

It is an arithmetic number, because the mean of its divisors is an integer number (34226796).

Almost surely, 2^68453591 is an apocalyptic number.

68453591 is a deficient number, since it is larger than the sum of its proper divisors (1).

68453591 is an equidigital number, since it uses as much as digits as its factorization.

68453591 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 41.

The square root of 68453591 is about 8273.6685333654. The cubic root of 68453591 is about 409.0710497221.

The spelling of 68453591 in words is "sixty-eight million, four hundred fifty-three thousand, five hundred ninety-one".