8149432549 has 2 divisors, whose sum is σ = 8149432550. Its totient is φ = 8149432548.

The previous prime is 8149432537. The next prime is 8149432561. The reversal of 8149432549 is 9452349418.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (8149432537) and next prime (8149432561).

It can be written as a sum of positive squares in only one way, i.e., 4077716449 + 4071716100 = 63857^2 + 63810^2 .

It is a cyclic number.

It is not a de Polignac number, because 8149432549 - 2¹⁵ = 8149399781 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8149432589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4074716274 + 4074716275.

It is an arithmetic number, because the mean of its divisors is an integer number (4074716275).

Almost surely, 2^8149432549 is an apocalyptic number.

It is an amenable number.

8149432549 is a deficient number, since it is larger than the sum of its proper divisors (1).

8149432549 is an equidigital number, since it uses as much as digits as its factorization.

8149432549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1244160, while the sum is 49.

The square root of 8149432549 is about 90274.2075512159. The cubic root of 8149432549 is about 2012.3759721103.

The spelling of 8149432549 in words is "eight billion, one hundred forty-nine million, four hundred thirty-two thousand, five hundred forty-nine".