2154533 has 2 divisors, whose sum is σ = 2154534. Its totient is φ = 2154532.

The previous prime is 2154499. The next prime is 2154539. The reversal of 2154533 is 3354512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2122849 + 31684 = 1457^2 + 178^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2154533 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 2154499 and 2154508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2154539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077266 + 1077267.

It is an arithmetic number, because the mean of its divisors is an integer number (1077267).

2^2154533 is an apocalyptic number.

It is an amenable number.

2154533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2154533 is an equidigital number, since it uses as much as digits as its factorization.

2154533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 23.

The square root of 2154533 is about 1467.8327561408. The cubic root of 2154533 is about 129.1569309809.

The spelling of 2154533 in words is "two million, one hundred fifty-four thousand, five hundred thirty-three".