2149448251 has 2 divisors, whose sum is σ = 2149448252. Its totient is φ = 2149448250.

The previous prime is 2149448243. The next prime is 2149448269. The reversal of 2149448251 is 1528449412.

2149448251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2149448251 - 2³ = 2149448243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2149448051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074724125 + 1074724126.

It is an arithmetic number, because the mean of its divisors is an integer number (1074724126).

Almost surely, 2^2149448251 is an apocalyptic number.

2149448251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149448251 is an equidigital number, since it uses as much as digits as its factorization.

2149448251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 40.

The square root of 2149448251 is about 46362.1424332396. The cubic root of 2149448251 is about 1290.5524647238.

The spelling of 2149448251 in words is "two billion, one hundred forty-nine million, four hundred forty-eight thousand, two hundred fifty-one".