2140169 has 2 divisors, whose sum is σ = 2140170. Its totient is φ = 2140168.

The previous prime is 2140163. The next prime is 2140199. The reversal of 2140169 is 9610412.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1795600 + 344569 = 1340^2 + 587^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2140169 is a prime.

It is a super-2 number, since 2×2140169² = 9160646697122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2140163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1070084 + 1070085.

It is an arithmetic number, because the mean of its divisors is an integer number (1070085).

2^2140169 is an apocalyptic number.

It is an amenable number.

2140169 is a deficient number, since it is larger than the sum of its proper divisors (1).

2140169 is an equidigital number, since it uses as much as digits as its factorization.

2140169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 2140169 is about 1462.9316457032. The cubic root of 2140169 is about 128.8692664286.

The spelling of 2140169 in words is "two million, one hundred forty thousand, one hundred sixty-nine".