2147479549 has 2 divisors, whose sum is σ = 2147479550. Its totient is φ = 2147479548.

The previous prime is 2147479547. The next prime is 2147479573. The reversal of 2147479549 is 9459747412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2049825625 + 97653924 = 45275^2 + 9882^2 .

It is a cyclic number.

It is not a de Polignac number, because 2147479549 - 2¹ = 2147479547 is a prime.

It is a super-2 number, since 2×2147479549² = 9223336826746486802, which contains 22 as substring.

Together with 2147479547, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2147479496 and 2147479505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2147479547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1073739774 + 1073739775.

It is an arithmetic number, because the mean of its divisors is an integer number (1073739775).

Almost surely, 2^2147479549 is an apocalyptic number.

It is an amenable number.

2147479549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2147479549 is an equidigital number, since it uses as much as digits as its factorization.

2147479549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2540160, while the sum is 52.

The square root of 2147479549 is about 46340.9057852779. The cubic root of 2147479549 is about 1290.1583342300.

The spelling of 2147479549 in words is "two billion, one hundred forty-seven million, four hundred seventy-nine thousand, five hundred forty-nine".