18975675 has 18 divisors (see below), whose sum is σ = 31435612. Its totient is φ = 10100240.

The previous prime is 18975653. The next prime is 18975679. The reversal of 18975675 is 57657981.

It is not a de Polignac number, because 18975675 - 2⁸ = 18975419 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18975679) 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 17 ways as a sum of consecutive naturals, for example, 37474 + ... + 37976.

Almost surely, 2^18975675 is an apocalyptic number.

18975675 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

18975675 is a deficient number, since it is larger than the sum of its proper divisors (12459937).

18975675 is an frugal number, since it uses more digits than its factorization.

18975675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1019 (or 511 counting only the distinct ones).

The product of its digits is 529200, while the sum is 48.

The square root of 18975675 is about 4356.1077810357. The cubic root of 18975675 is about 266.7262410301.

Multiplying 18975675 by its sum of digits (48), we get a square (910832400 = 30180²).

Multiplying 18975675 by its product of digits (529200), we get a square (10041927210000 = 3168900²).

The spelling of 18975675 in words is "eighteen million, nine hundred seventy-five thousand, six hundred seventy-five".