1108551749 has 2 divisors, whose sum is σ = 1108551750. Its totient is φ = 1108551748.

The previous prime is 1108551733. The next prime is 1108551761. The reversal of 1108551749 is 9471558011.

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., 639179524 + 469372225 = 25282^2 + 21665^2 .

It is an emirp because it is prime and its reverse (9471558011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1108551749 - 2⁴ = 1108551733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1108551149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554275874 + 554275875.

It is an arithmetic number, because the mean of its divisors is an integer number (554275875).

Almost surely, 2^1108551749 is an apocalyptic number.

It is an amenable number.

1108551749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1108551749 is an equidigital number, since it uses as much as digits as its factorization.

1108551749 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 41.

The square root of 1108551749 is about 33294.9207687899. The cubic root of 1108551749 is about 1034.9483039517.

The spelling of 1108551749 in words is "one billion, one hundred eight million, five hundred fifty-one thousand, seven hundred forty-nine".