4135542149 has 2 divisors, whose sum is σ = 4135542150. Its totient is φ = 4135542148.

The previous prime is 4135542139. The next prime is 4135542161. The reversal of 4135542149 is 9412455314.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3386425249 + 749116900 = 58193^2 + 27370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4135542149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4135542139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2067771074 + 2067771075.

It is an arithmetic number, because the mean of its divisors is an integer number (2067771075).

Almost surely, 2^4135542149 is an apocalyptic number.

It is an amenable number.

4135542149 is a deficient number, since it is larger than the sum of its proper divisors (1).

4135542149 is an equidigital number, since it uses as much as digits as its factorization.

4135542149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 86400, while the sum is 38.

The square root of 4135542149 is about 64308.1810425392. The cubic root of 4135542149 is about 1605.1322373035.

The spelling of 4135542149 in words is "four billion, one hundred thirty-five million, five hundred forty-two thousand, one hundred forty-nine".