2149117 has 2 divisors, whose sum is σ = 2149118. Its totient is φ = 2149116.

The previous prime is 2149111. The next prime is 2149127. The reversal of 2149117 is 7119412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1610361 + 538756 = 1269^2 + 734^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149117 - 2⁷ = 2148989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2149091 and 2149100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074558 + 1074559.

It is an arithmetic number, because the mean of its divisors is an integer number (1074559).

2^2149117 is an apocalyptic number.

It is an amenable number.

2149117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149117 is an equidigital number, since it uses as much as digits as its factorization.

2149117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 25.

The square root of 2149117 is about 1465.9866984390. The cubic root of 2149117 is about 129.0486165732.

The spelling of 2149117 in words is "two million, one hundred forty-nine thousand, one hundred seventeen".