18485351 has 2 divisors, whose sum is σ = 18485352. Its totient is φ = 18485350.

The previous prime is 18485339. The next prime is 18485371. The reversal of 18485351 is 15358481.

It is a weak prime.

It is an emirp because it is prime and its reverse (15358481) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18485351 - 2²² = 14291047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18485371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9242675 + 9242676.

It is an arithmetic number, because the mean of its divisors is an integer number (9242676).

Almost surely, 2^18485351 is an apocalyptic number.

18485351 is a deficient number, since it is larger than the sum of its proper divisors (1).

18485351 is an equidigital number, since it uses as much as digits as its factorization.

18485351 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19200, while the sum is 35.

The square root of 18485351 is about 4299.4593846204. The cubic root of 18485351 is about 264.4087971405.

The spelling of 18485351 in words is "eighteen million, four hundred eighty-five thousand, three hundred fifty-one".