49168109 has 2 divisors, whose sum is σ = 49168110. Its totient is φ = 49168108.

The previous prime is 49168103. The next prime is 49168159. The reversal of 49168109 is 90186194.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41344900 + 7823209 = 6430^2 + 2797^2 .

It is a cyclic number.

It is not a de Polignac number, because 49168109 - 2¹² = 49164013 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49168103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24584054 + 24584055.

It is an arithmetic number, because the mean of its divisors is an integer number (24584055).

Almost surely, 2^49168109 is an apocalyptic number.

It is an amenable number.

49168109 is a deficient number, since it is larger than the sum of its proper divisors (1).

49168109 is an equidigital number, since it uses as much as digits as its factorization.

49168109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 49168109 is about 7011.9975042779. The cubic root of 49168109 is about 366.3485710450.

The spelling of 49168109 in words is "forty-nine million, one hundred sixty-eight thousand, one hundred nine".