18342053 has 4 divisors (see below), whose sum is σ = 18593388. Its totient is φ = 18090720.

The previous prime is 18342043. The next prime is 18342061. The reversal of 18342053 is 35024381.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 35024381 = 7 ⋅5003483.

It can be written as a sum of positive squares in 2 ways, for example, as 13667809 + 4674244 = 3697^2 + 2162^2 .

It is a cyclic number.

It is not a de Polignac number, because 18342053 - 2¹⁴ = 18325669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18342013) 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, 125558 + ... + 125703.

It is an arithmetic number, because the mean of its divisors is an integer number (4648347).

Almost surely, 2^18342053 is an apocalyptic number.

It is an amenable number.

18342053 is a deficient number, since it is larger than the sum of its proper divisors (251335).

18342053 is an equidigital number, since it uses as much as digits as its factorization.

18342053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251334.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 18342053 is about 4282.7623095381. The cubic root of 18342053 is about 263.7237938069.

The spelling of 18342053 in words is "eighteen million, three hundred forty-two thousand, fifty-three".