2124100249 has 2 divisors, whose sum is σ = 2124100250. Its totient is φ = 2124100248.

The previous prime is 2124100247. The next prime is 2124100261. The reversal of 2124100249 is 9420014212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1302704649 + 821395600 = 36093^2 + 28660^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124100249 - 2¹ = 2124100247 is a prime.

Together with 2124100247, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2124100247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1062050124 + 1062050125.

It is an arithmetic number, because the mean of its divisors is an integer number (1062050125).

Almost surely, 2^2124100249 is an apocalyptic number.

It is an amenable number.

2124100249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124100249 is an equidigital number, since it uses as much as digits as its factorization.

2124100249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2124100249 is about 46087.9620833901. The cubic root of 2124100249 is about 1285.4593176991.

The spelling of 2124100249 in words is "two billion, one hundred twenty-four million, one hundred thousand, two hundred forty-nine".