18125983 has 2 divisors, whose sum is σ = 18125984. Its totient is φ = 18125982.

The previous prime is 18125969. The next prime is 18125993. The reversal of 18125983 is 38952181.

It is a strong prime.

It is an emirp because it is prime and its reverse (38952181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18125983 - 2¹³ = 18117791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18125903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9062991 + 9062992.

It is an arithmetic number, because the mean of its divisors is an integer number (9062992).

Almost surely, 2^18125983 is an apocalyptic number.

18125983 is a deficient number, since it is larger than the sum of its proper divisors (1).

18125983 is an equidigital number, since it uses as much as digits as its factorization.

18125983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 37.

The square root of 18125983 is about 4257.4620374115. The cubic root of 18125983 is about 262.6841422991.

The spelling of 18125983 in words is "eighteen million, one hundred twenty-five thousand, nine hundred eighty-three".