18120463 has 2 divisors, whose sum is σ = 18120464. Its totient is φ = 18120462.

The previous prime is 18120451. The next prime is 18120497. The reversal of 18120463 is 36402181.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18120463 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18120413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9060231 + 9060232.

It is an arithmetic number, because the mean of its divisors is an integer number (9060232).

Almost surely, 2^18120463 is an apocalyptic number.

18120463 is a deficient number, since it is larger than the sum of its proper divisors (1).

18120463 is an equidigital number, since it uses as much as digits as its factorization.

18120463 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 18120463 is about 4256.8137145053. The cubic root of 18120463 is about 262.6574740685.

The spelling of 18120463 in words is "eighteen million, one hundred twenty thousand, four hundred sixty-three".