2148451 has 2 divisors, whose sum is σ = 2148452. Its totient is φ = 2148450.

The previous prime is 2148449. The next prime is 2148457. The reversal of 2148451 is 1548412.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2148451 - 2¹ = 2148449 is a prime.

It is a super-3 number, since 3×2148451³ = 29750729144759333553, which contains 333 as substring.

Together with 2148449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2148457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074225 + 1074226.

It is an arithmetic number, because the mean of its divisors is an integer number (1074226).

2^2148451 is an apocalyptic number.

2148451 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148451 is an equidigital number, since it uses as much as digits as its factorization.

2148451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1280, while the sum is 25.

The square root of 2148451 is about 1465.7595300731. The cubic root of 2148451 is about 129.0352847012.

The spelling of 2148451 in words is "two million, one hundred forty-eight thousand, four hundred fifty-one".