18057701 has 4 divisors (see below), whose sum is σ = 18125100. Its totient is φ = 17990304.

The previous prime is 18057673. The next prime is 18057709. The reversal of 18057701 is 10775081.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10775081 = 2423 ⋅4447.

It can be written as a sum of positive squares in 2 ways, for example, as 6120676 + 11937025 = 2474^2 + 3455^2 .

It is a cyclic number.

It is not a de Polignac number, because 18057701 - 2¹⁰ = 18056677 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 (18057709) 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, 33296 + ... + 33833.

It is an arithmetic number, because the mean of its divisors is an integer number (4531275).

Almost surely, 2^18057701 is an apocalyptic number.

It is an amenable number.

18057701 is a deficient number, since it is larger than the sum of its proper divisors (67399).

18057701 is an equidigital number, since it uses as much as digits as its factorization.

18057701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67398.

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

The square root of 18057701 is about 4249.4353742586. The cubic root of 18057701 is about 262.3538766483.

The spelling of 18057701 in words is "eighteen million, fifty-seven thousand, seven hundred one".