2130523 has 2 divisors, whose sum is σ = 2130524. Its totient is φ = 2130522.

The previous prime is 2130509. The next prime is 2130529. The reversal of 2130523 is 3250312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130497 and 2130506.

It is not a weakly prime, because it can be changed into another prime (2130529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065261 + 1065262.

It is an arithmetic number, because the mean of its divisors is an integer number (1065262).

2^2130523 is an apocalyptic number.

2130523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130523 is an equidigital number, since it uses as much as digits as its factorization.

2130523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 2130523 is about 1459.6311177828. The cubic root of 2130523 is about 128.6753650444.

Adding to 2130523 its reverse (3250312), we get a palindrome (5380835).

The spelling of 2130523 in words is "two million, one hundred thirty thousand, five hundred twenty-three".