523145219 has 2 divisors, whose sum is σ = 523145220. Its totient is φ = 523145218.

The previous prime is 523145213. The next prime is 523145237. The reversal of 523145219 is 912541325.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 523145219 - 2¹² = 523141123 is a prime.

It is a super-2 number, since 2×523145219² = 547361840325115922, which contains 22 as substring.

It is equal to p_27509261 and since 523145219 and 27509261 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (523145213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261572609 + 261572610.

It is an arithmetic number, because the mean of its divisors is an integer number (261572610).

Almost surely, 2^523145219 is an apocalyptic number.

523145219 is a deficient number, since it is larger than the sum of its proper divisors (1).

523145219 is an equidigital number, since it uses as much as digits as its factorization.

523145219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 32.

The square root of 523145219 is about 22872.3680234470. The cubic root of 523145219 is about 805.7631840022.

The spelling of 523145219 in words is "five hundred twenty-three million, one hundred forty-five thousand, two hundred nineteen".