18545536 has 16 divisors (see below), whose sum is σ = 36946440. Its totient is φ = 9272704.

The previous prime is 18545531. The next prime is 18545537. The reversal of 18545536 is 63554581.

It is a tau number, because it is divible by the number of its divisors (16).

It is a junction number, because it is equal to n+sod(n) for n = 18545495 and 18545504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18545531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72316 + ... + 72571.

Almost surely, 2^18545536 is an apocalyptic number.

18545536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

18545536 is a deficient number, since it is larger than the sum of its proper divisors (18400904).

18545536 is an equidigital number, since it uses as much as digits as its factorization.

18545536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144901 (or 144889 counting only the distinct ones).

The product of its digits is 72000, while the sum is 37.

The square root of 18545536 is about 4306.4528326687. The cubic root of 18545536 is about 264.6954422104.

The spelling of 18545536 in words is "eighteen million, five hundred forty-five thousand, five hundred thirty-six".