108815149 has 2 divisors, whose sum is σ = 108815150. Its totient is φ = 108815148.

The previous prime is 108815143. The next prime is 108815171. The reversal of 108815149 is 941518801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95199049 + 13616100 = 9757^2 + 3690^2 .

It is an emirp because it is prime and its reverse (941518801) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 108815149 - 2²³ = 100426541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (108815143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54407574 + 54407575.

It is an arithmetic number, because the mean of its divisors is an integer number (54407575).

Almost surely, 2^108815149 is an apocalyptic number.

It is an amenable number.

108815149 is a deficient number, since it is larger than the sum of its proper divisors (1).

108815149 is an equidigital number, since it uses as much as digits as its factorization.

108815149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 37.

The square root of 108815149 is about 10431.4499950870. The cubic root of 108815149 is about 477.4154326996.

The spelling of 108815149 in words is "one hundred eight million, eight hundred fifteen thousand, one hundred forty-nine".