18103077 has 12 divisors (see below), whose sum is σ = 26295724. Its totient is φ = 12000960.

The previous prime is 18103069. The next prime is 18103081. The reversal of 18103077 is 77030181.

It can be written as a sum of positive squares in 2 ways, for example, as 133956 + 17969121 = 366^2 + 4239^2 .

It is not a de Polignac number, because 18103077 - 2³ = 18103069 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 18103077.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18101077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3928 + ... + 7185.

Almost surely, 2^18103077 is an apocalyptic number.

It is an amenable number.

18103077 is a deficient number, since it is larger than the sum of its proper divisors (8192647).

18103077 is a wasteful number, since it uses less digits than its factorization.

18103077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11300 (or 11297 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 27.

The square root of 18103077 is about 4254.7710866743. The cubic root of 18103077 is about 262.5734433953.

The spelling of 18103077 in words is "eighteen million, one hundred three thousand, seventy-seven".