7705100149 has 2 divisors, whose sum is σ = 7705100150. Its totient is φ = 7705100148.

The previous prime is 7705100129. The next prime is 7705100173. The reversal of 7705100149 is 9410015077.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5889488049 + 1815612100 = 76743^2 + 42610^2 .

It is an emirp because it is prime and its reverse (9410015077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7705100149 - 2⁷ = 7705100021 is a prime.

It is a super-2 number, since 2×7705100149² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7705100129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3852550074 + 3852550075.

It is an arithmetic number, because the mean of its divisors is an integer number (3852550075).

Almost surely, 2^7705100149 is an apocalyptic number.

It is an amenable number.

7705100149 is a deficient number, since it is larger than the sum of its proper divisors (1).

7705100149 is an equidigital number, since it uses as much as digits as its factorization.

7705100149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8820, while the sum is 34.

The square root of 7705100149 is about 87778.6998593622. The cubic root of 7705100149 is about 1975.1167072197.

The spelling of 7705100149 in words is "seven billion, seven hundred five million, one hundred thousand, one hundred forty-nine".