18365061 has 48 divisors (see below), whose sum is σ = 30041280. Its totient is φ = 9884160.

The previous prime is 18365057. The next prime is 18365069. The reversal of 18365061 is 16056381.

It is not a de Polignac number, because 18365061 - 2² = 18365057 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18365069) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 206305 + ... + 206393.

It is an arithmetic number, because the mean of its divisors is an integer number (625860).

Almost surely, 2^18365061 is an apocalyptic number.

18365061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

18365061 is a deficient number, since it is larger than the sum of its proper divisors (11676219).

18365061 is a wasteful number, since it uses less digits than its factorization.

18365061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166 (or 153 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 18365061 is about 4285.4475845587. The cubic root of 18365061 is about 263.8340181406.

The spelling of 18365061 in words is "eighteen million, three hundred sixty-five thousand, sixty-one".