2124896549 has 2 divisors, whose sum is σ = 2124896550. Its totient is φ = 2124896548.

The previous prime is 2124896539. The next prime is 2124896567. The reversal of 2124896549 is 9456984212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1485717025 + 639179524 = 38545^2 + 25282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2124896549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2124896497 and 2124896506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2124896539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062448274 + 1062448275.

It is an arithmetic number, because the mean of its divisors is an integer number (1062448275).

Almost surely, 2^2124896549 is an apocalyptic number.

It is an amenable number.

2124896549 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124896549 is an equidigital number, since it uses as much as digits as its factorization.

2124896549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1244160, while the sum is 50.

The square root of 2124896549 is about 46096.6001891680. The cubic root of 2124896549 is about 1285.6199321159.

The spelling of 2124896549 in words is "two billion, one hundred twenty-four million, eight hundred ninety-six thousand, five hundred forty-nine".