2148737251 has 2 divisors, whose sum is σ = 2148737252. Its totient is φ = 2148737250.

The previous prime is 2148737249. The next prime is 2148737293. The reversal of 2148737251 is 1527378412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2148737251 - 2¹ = 2148737249 is a prime.

Together with 2148737249, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2148737221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074368625 + 1074368626.

It is an arithmetic number, because the mean of its divisors is an integer number (1074368626).

Almost surely, 2^2148737251 is an apocalyptic number.

2148737251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148737251 is an equidigital number, since it uses as much as digits as its factorization.

2148737251 is an evil number, because the sum of its binary digits is even.

The product of its digits is 94080, while the sum is 40.

The square root of 2148737251 is about 46354.4739048994. The cubic root of 2148737251 is about 1290.4101516140.

The spelling of 2148737251 in words is "two billion, one hundred forty-eight million, seven hundred thirty-seven thousand, two hundred fifty-one".