2174679149 has 2 divisors, whose sum is σ = 2174679150. Its totient is φ = 2174679148.

The previous prime is 2174679103. The next prime is 2174679161. The reversal of 2174679149 is 9419764712.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1805655049 + 369024100 = 42493^2 + 19210^2 .

It is a cyclic number.

It is not a de Polignac number, because 2174679149 - 2¹² = 2174675053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2174679097 and 2174679106.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2174679349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1087339574 + 1087339575.

It is an arithmetic number, because the mean of its divisors is an integer number (1087339575).

Almost surely, 2^2174679149 is an apocalyptic number.

It is an amenable number.

2174679149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2174679149 is an equidigital number, since it uses as much as digits as its factorization.

2174679149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 762048, while the sum is 50.

The square root of 2174679149 is about 46633.4552547846. The cubic root of 2174679149 is about 1295.5824710879.

The spelling of 2174679149 in words is "two billion, one hundred seventy-four million, six hundred seventy-nine thousand, one hundred forty-nine".