18051077 has 4 divisors (see below), whose sum is σ = 19692096. Its totient is φ = 16410060.

The previous prime is 18051071. The next prime is 18051101. The reversal of 18051077 is 77015081.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18051077 - 2¹² = 18046981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18051071) 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, 820493 + ... + 820514.

It is an arithmetic number, because the mean of its divisors is an integer number (4923024).

Almost surely, 2^18051077 is an apocalyptic number.

It is an amenable number.

18051077 is a deficient number, since it is larger than the sum of its proper divisors (1641019).

18051077 is a wasteful number, since it uses less digits than its factorization.

18051077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1641018.

The product of its (nonzero) digits is 1960, while the sum is 29.

The square root of 18051077 is about 4248.6559051069. The cubic root of 18051077 is about 262.3217934831.

It can be divided in two parts, 1805 and 1077, that added together give a palindrome (2882).

The spelling of 18051077 in words is "eighteen million, fifty-one thousand, seventy-seven".