2148149 has 2 divisors, whose sum is σ = 2148150. Its totient is φ = 2148148.

The previous prime is 2148127. The next prime is 2148163. The reversal of 2148149 is 9418412.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2002225 + 145924 = 1415^2 + 382^2 .

It is a cyclic number.

It is not a de Polignac number, because 2148149 - 2²⁰ = 1099573 is a prime.

It is a super-2 number, since 2×2148149² = 9229088252402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2148199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074074 + 1074075.

It is an arithmetic number, because the mean of its divisors is an integer number (1074075).

2^2148149 is an apocalyptic number.

It is an amenable number.

2148149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2148149 is an equidigital number, since it uses as much as digits as its factorization.

2148149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 29.

The square root of 2148149 is about 1465.6565081901. The cubic root of 2148149 is about 129.0292384098.

The spelling of 2148149 in words is "two million, one hundred forty-eight thousand, one hundred forty-nine".