18148763 has 4 divisors (see below), whose sum is σ = 18214560. Its totient is φ = 18082968.

The previous prime is 18148747. The next prime is 18148769. The reversal of 18148763 is 36784181.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 18148763 - 2⁴ = 18148747 is a prime.

It is a super-3 number, since 3×18148763³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18148769) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32483 + ... + 33036.

It is an arithmetic number, because the mean of its divisors is an integer number (4553640).

Almost surely, 2^18148763 is an apocalyptic number.

18148763 is a deficient number, since it is larger than the sum of its proper divisors (65797).

18148763 is an equidigital number, since it uses as much as digits as its factorization.

18148763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65796.

The product of its digits is 32256, while the sum is 38.

The square root of 18148763 is about 4260.1365001605. The cubic root of 18148763 is about 262.7941398225.

The spelling of 18148763 in words is "eighteen million, one hundred forty-eight thousand, seven hundred sixty-three".