2169913 has 2 divisors, whose sum is σ = 2169914. Its totient is φ = 2169912.

The previous prime is 2169883. The next prime is 2169941. The reversal of 2169913 is 3199612.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1459264 + 710649 = 1208^2 + 843^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2169913 is a prime.

It is not a weakly prime, because it can be changed into another prime (2169313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1084956 + 1084957.

It is an arithmetic number, because the mean of its divisors is an integer number (1084957).

2^2169913 is an apocalyptic number.

It is an amenable number.

2169913 is a deficient number, since it is larger than the sum of its proper divisors (1).

2169913 is an equidigital number, since it uses as much as digits as its factorization.

2169913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2916, while the sum is 31.

The square root of 2169913 is about 1473.0624562455. The cubic root of 2169913 is about 129.4635288340.

It can be divided in two parts, 21699 and 13, that added together give a palindrome (21712).

The spelling of 2169913 in words is "two million, one hundred sixty-nine thousand, nine hundred thirteen".