2149845101 has 2 divisors, whose sum is σ = 2149845102. Its totient is φ = 2149845100.

The previous prime is 2149845073. The next prime is 2149845161. The reversal of 2149845101 is 1015489412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1276347076 + 873498025 = 35726^2 + 29555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149845101 - 2²² = 2145650797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149845161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074922550 + 1074922551.

It is an arithmetic number, because the mean of its divisors is an integer number (1074922551).

Almost surely, 2^2149845101 is an apocalyptic number.

It is an amenable number.

2149845101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149845101 is an equidigital number, since it uses as much as digits as its factorization.

2149845101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 35.

The square root of 2149845101 is about 46366.4221285188. The cubic root of 2149845101 is about 1290.6318842103.

The spelling of 2149845101 in words is "two billion, one hundred forty-nine million, eight hundred forty-five thousand, one hundred one".