2190533 has 2 divisors, whose sum is σ = 2190534. Its totient is φ = 2190532.

The previous prime is 2190523. The next prime is 2190541. The reversal of 2190533 is 3350912.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1803649 + 386884 = 1343^2 + 622^2 .

It is a cyclic number.

It is not a de Polignac number, because 2190533 - 2⁶ = 2190469 is a prime.

It is a super-3 number, since 3×2190533³ = 31533389491548448311, which contains 333 as substring.

It is a Sophie Germain prime.

It is an Ulam number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2190499 and 2190508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2190523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095266 + 1095267.

It is an arithmetic number, because the mean of its divisors is an integer number (1095267).

2^2190533 is an apocalyptic number.

It is an amenable number.

2190533 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190533 is an equidigital number, since it uses as much as digits as its factorization.

2190533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 23.

The square root of 2190533 is about 1480.0449317504. The cubic root of 2190533 is about 129.8723203998.

The spelling of 2190533 in words is "two million, one hundred ninety thousand, five hundred thirty-three".