9183912149 has 2 divisors, whose sum is σ = 9183912150. Its totient is φ = 9183912148.

The previous prime is 9183912139. The next prime is 9183912169. The reversal of 9183912149 is 9412193819.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5038870225 + 4145041924 = 70985^2 + 64382^2 .

It is a cyclic number.

It is not a de Polignac number, because 9183912149 - 2²⁸ = 8915476693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9183912119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4591956074 + 4591956075.

It is an arithmetic number, because the mean of its divisors is an integer number (4591956075).

Almost surely, 2^9183912149 is an apocalyptic number.

It is an amenable number.

9183912149 is a deficient number, since it is larger than the sum of its proper divisors (1).

9183912149 is an equidigital number, since it uses as much as digits as its factorization.

9183912149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 139968, while the sum is 47.

The square root of 9183912149 is about 95832.7300508548. The cubic root of 9183912149 is about 2094.1570115833.

The spelling of 9183912149 in words is "nine billion, one hundred eighty-three million, nine hundred twelve thousand, one hundred forty-nine".