2153069 has 2 divisors, whose sum is σ = 2153070. Its totient is φ = 2153068.

The previous prime is 2153059. The next prime is 2153071. The reversal of 2153069 is 9603512.

2153069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2137444 + 15625 = 1462^2 + 125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153069 is a prime.

It is a super-2 number, since 2×2153069² = 9271412237522, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 2153071, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2153059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076534 + 1076535.

It is an arithmetic number, because the mean of its divisors is an integer number (1076535).

2^2153069 is an apocalyptic number.

It is an amenable number.

2153069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153069 is an equidigital number, since it uses as much as digits as its factorization.

2153069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 2153069 is about 1467.3339769800. Note that the first 3 decimals coincide. The cubic root of 2153069 is about 129.1276704109.

The spelling of 2153069 in words is "two million, one hundred fifty-three thousand, sixty-nine".