18754913 has 4 divisors (see below), whose sum is σ = 19570368. Its totient is φ = 17939460.

The previous prime is 18754903. The next prime is 18754973. The reversal of 18754913 is 31945781.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18754913 - 2⁶ = 18754849 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18754903) 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, 407693 + ... + 407738.

It is an arithmetic number, because the mean of its divisors is an integer number (4892592).

Almost surely, 2^18754913 is an apocalyptic number.

It is an amenable number.

18754913 is a deficient number, since it is larger than the sum of its proper divisors (815455).

18754913 is an equidigital number, since it uses as much as digits as its factorization.

18754913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815454.

The product of its digits is 30240, while the sum is 38.

The square root of 18754913 is about 4330.6942861393. The cubic root of 18754913 is about 265.6878440095.

The spelling of 18754913 in words is "eighteen million, seven hundred fifty-four thousand, nine hundred thirteen".