2149848739 has 2 divisors, whose sum is σ = 2149848740. Its totient is φ = 2149848738.

The previous prime is 2149848661. The next prime is 2149848749. The reversal of 2149848739 is 9378489412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2149848739 - 2¹¹ = 2149846691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2149848739.

It is not a weakly prime, because it can be changed into another prime (2149848749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074924369 + 1074924370.

It is an arithmetic number, because the mean of its divisors is an integer number (1074924370).

Almost surely, 2^2149848739 is an apocalyptic number.

2149848739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149848739 is an equidigital number, since it uses as much as digits as its factorization.

2149848739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 55.

The square root of 2149848739 is about 46366.4613594784. The cubic root of 2149848739 is about 1290.6326122188.

The spelling of 2149848739 in words is "two billion, one hundred forty-nine million, eight hundred forty-eight thousand, seven hundred thirty-nine".