18253801 has 8 divisors (see below), whose sum is σ = 19777824. Its totient is φ = 16779840.

The previous prime is 18253799. The next prime is 18253843. The reversal of 18253801 is 10835281.

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

It is a cyclic number.

It is not a de Polignac number, because 18253801 - 2¹ = 18253799 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 18253801.

It is not an unprimeable number, because it can be changed into a prime (18253861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11755 + ... + 13216.

It is an arithmetic number, because the mean of its divisors is an integer number (2472228).

Almost surely, 2^18253801 is an apocalyptic number.

It is an amenable number.

18253801 is a deficient number, since it is larger than the sum of its proper divisors (1524023).

18253801 is a wasteful number, since it uses less digits than its factorization.

18253801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25031.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 18253801 is about 4272.4467228978. The cubic root of 18253801 is about 263.3001483935.

The spelling of 18253801 in words is "eighteen million, two hundred fifty-three thousand, eight hundred one".