2153471 has 2 divisors, whose sum is σ = 2153472. Its totient is φ = 2153470.

The previous prime is 2153449. The next prime is 2153491. The reversal of 2153471 is 1743512.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2153471 is a prime.

It is a super-3 number, since 3×2153471³ = 29959760528677518333, which contains 333 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 (2153401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1076735 + 1076736.

It is an arithmetic number, because the mean of its divisors is an integer number (1076736).

2^2153471 is an apocalyptic number.

2153471 is a deficient number, since it is larger than the sum of its proper divisors (1).

2153471 is an equidigital number, since it uses as much as digits as its factorization.

2153471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 840, while the sum is 23.

The square root of 2153471 is about 1467.4709537160. The cubic root of 2153471 is about 129.1357063963.

Adding to 2153471 its reverse (1743512), we get a palindrome (3896983).

The spelling of 2153471 in words is "two million, one hundred fifty-three thousand, four hundred seventy-one".