67230509 has 2 divisors, whose sum is σ = 67230510. Its totient is φ = 67230508.

The previous prime is 67230503. The next prime is 67230523. The reversal of 67230509 is 90503276.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57805609 + 9424900 = 7603^2 + 3070^2 .

It is a cyclic number.

It is not a de Polignac number, because 67230509 - 2⁸ = 67230253 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (67230503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33615254 + 33615255.

It is an arithmetic number, because the mean of its divisors is an integer number (33615255).

Almost surely, 2^67230509 is an apocalyptic number.

It is an amenable number.

67230509 is a deficient number, since it is larger than the sum of its proper divisors (1).

67230509 is an equidigital number, since it uses as much as digits as its factorization.

67230509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 67230509 is about 8199.4212600646. The cubic root of 67230509 is about 406.6200596801.

The spelling of 67230509 in words is "sixty-seven million, two hundred thirty thousand, five hundred nine".