2190523 has 2 divisors, whose sum is σ = 2190524. Its totient is φ = 2190522.

The previous prime is 2190521. The next prime is 2190533. The reversal of 2190523 is 3250912.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2190523 - 2¹ = 2190521 is a prime.

Together with 2190521, it forms a pair of twin primes.

2190523 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 2190494 and 2190503.

It is not a weakly prime, because it can be changed into another prime (2190521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1095261 + 1095262.

It is an arithmetic number, because the mean of its divisors is an integer number (1095262).

2^2190523 is an apocalyptic number.

2190523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2190523 is an equidigital number, since it uses as much as digits as its factorization.

2190523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 2190523 is about 1480.0415534707. The cubic root of 2190523 is about 129.8721227728.

The spelling of 2190523 in words is "two million, one hundred ninety thousand, five hundred twenty-three".