2125449479 has 2 divisors, whose sum is σ = 2125449480. Its totient is φ = 2125449478.

The previous prime is 2125449449. The next prime is 2125449493. The reversal of 2125449479 is 9749445212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2125449479 - 2¹⁶ = 2125383943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2125449439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062724739 + 1062724740.

It is an arithmetic number, because the mean of its divisors is an integer number (1062724740).

Almost surely, 2^2125449479 is an apocalyptic number.

2125449479 is a deficient number, since it is larger than the sum of its proper divisors (1).

2125449479 is an equidigital number, since it uses as much as digits as its factorization.

2125449479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 47.

The square root of 2125449479 is about 46102.5973129497. The cubic root of 2125449479 is about 1285.7314349841.

The spelling of 2125449479 in words is "two billion, one hundred twenty-five million, four hundred forty-nine thousand, four hundred seventy-nine".