73425239 has 2 divisors, whose sum is σ = 73425240. Its totient is φ = 73425238.

The previous prime is 73425211. The next prime is 73425241. The reversal of 73425239 is 93252437.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73425239 is a prime.

Together with 73425241, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 73425199 and 73425208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73425259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36712619 + 36712620.

It is an arithmetic number, because the mean of its divisors is an integer number (36712620).

Almost surely, 2^73425239 is an apocalyptic number.

73425239 is a deficient number, since it is larger than the sum of its proper divisors (1).

73425239 is an equidigital number, since it uses as much as digits as its factorization.

73425239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 35.

The square root of 73425239 is about 8568.8528403748. The cubic root of 73425239 is about 418.7438640521.

The spelling of 73425239 in words is "seventy-three million, four hundred twenty-five thousand, two hundred thirty-nine".