18954075 has 48 divisors (see below), whose sum is σ = 36346880. Its totient is φ = 8536320.

The previous prime is 18954071. The next prime is 18954079. The reversal of 18954075 is 57045981.

It is an interprime number because it is at equal distance from previous prime (18954071) and next prime (18954079).

It is not a de Polignac number, because 18954075 - 2² = 18954071 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18954071) 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 47 ways as a sum of consecutive naturals, for example, 41247 + ... + 41703.

Almost surely, 2^18954075 is an apocalyptic number.

18954075 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18954075 is a deficient number, since it is larger than the sum of its proper divisors (17392805).

18954075 is a wasteful number, since it uses less digits than its factorization.

18954075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556 (or 551 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 39.

The square root of 18954075 is about 4353.6277975959. The cubic root of 18954075 is about 266.6249978295.

The spelling of 18954075 in words is "eighteen million, nine hundred fifty-four thousand, seventy-five".