2120186249 has 2 divisors, whose sum is σ = 2120186250. Its totient is φ = 2120186248.

The previous prime is 2120186239. The next prime is 2120186267. The reversal of 2120186249 is 9426810212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1736222224 + 383964025 = 41668^2 + 19595^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120186249 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120186239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060093124 + 1060093125.

It is an arithmetic number, because the mean of its divisors is an integer number (1060093125).

Almost surely, 2^2120186249 is an apocalyptic number.

It is an amenable number.

2120186249 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120186249 is an equidigital number, since it uses as much as digits as its factorization.

2120186249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 2120186249 is about 46045.4802233618. The cubic root of 2120186249 is about 1284.6692763218.

The spelling of 2120186249 in words is "two billion, one hundred twenty million, one hundred eighty-six thousand, two hundred forty-nine".