18453142 has 8 divisors (see below), whose sum is σ = 29136600. Its totient is φ = 8740944.

The previous prime is 18453103. The next prime is 18453151. The reversal of 18453142 is 24135481.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 18453142.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 242767 + ... + 242842.

It is an arithmetic number, because the mean of its divisors is an integer number (3642075).

Almost surely, 2^18453142 is an apocalyptic number.

18453142 is a deficient number, since it is larger than the sum of its proper divisors (10683458).

18453142 is a wasteful number, since it uses less digits than its factorization.

18453142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485630.

The product of its digits is 3840, while the sum is 28.

The square root of 18453142 is about 4295.7120480777. The cubic root of 18453142 is about 264.2551386382.

The spelling of 18453142 in words is "eighteen million, four hundred fifty-three thousand, one hundred forty-two".