4139101849 has 2 divisors, whose sum is σ = 4139101850. Its totient is φ = 4139101848.

The previous prime is 4139101819. The next prime is 4139101867. The reversal of 4139101849 is 9481019314.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4014109449 + 124992400 = 63357^2 + 11180^2 .

It is a cyclic number.

It is not a de Polignac number, because 4139101849 - 2¹³ = 4139093657 is a prime.

It is not a weakly prime, because it can be changed into another prime (4139101819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2069550924 + 2069550925.

It is an arithmetic number, because the mean of its divisors is an integer number (2069550925).

Almost surely, 2^4139101849 is an apocalyptic number.

It is an amenable number.

4139101849 is a deficient number, since it is larger than the sum of its proper divisors (1).

4139101849 is an equidigital number, since it uses as much as digits as its factorization.

4139101849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 40.

The square root of 4139101849 is about 64335.8519722868. The cubic root of 4139101849 is about 1605.5926485714.

The spelling of 4139101849 in words is "four billion, one hundred thirty-nine million, one hundred one thousand, eight hundred forty-nine".