108345557 has 2 divisors, whose sum is σ = 108345558. Its totient is φ = 108345556.

The previous prime is 108345553. The next prime is 108345563. The reversal of 108345557 is 755543801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 89283601 + 19061956 = 9449^2 + 4366^2 .

It is a cyclic number.

It is not a de Polignac number, because 108345557 - 2² = 108345553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 108345557.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108345551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54172778 + 54172779.

It is an arithmetic number, because the mean of its divisors is an integer number (54172779).

Almost surely, 2^108345557 is an apocalyptic number.

It is an amenable number.

108345557 is a deficient number, since it is larger than the sum of its proper divisors (1).

108345557 is an equidigital number, since it uses as much as digits as its factorization.

108345557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84000, while the sum is 38.

The square root of 108345557 is about 10408.9171867202. The cubic root of 108345557 is about 476.7276799878.

The spelling of 108345557 in words is "one hundred eight million, three hundred forty-five thousand, five hundred fifty-seven".