18914529 has 8 divisors (see below), whose sum is σ = 25240320. Its totient is φ = 12599216.

The previous prime is 18914521. The next prime is 18914531. The reversal of 18914529 is 92541981.

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 18914529 - 2³ = 18914521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18914521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3952 + ... + 7310.

It is an arithmetic number, because the mean of its divisors is an integer number (3155040).

Almost surely, 2^18914529 is an apocalyptic number.

It is an amenable number.

18914529 is a deficient number, since it is larger than the sum of its proper divisors (6325791).

18914529 is a wasteful number, since it uses less digits than its factorization.

18914529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239.

The product of its digits is 25920, while the sum is 39.

The square root of 18914529 is about 4349.0836965963. The cubic root of 18914529 is about 266.4394388986.

The spelling of 18914529 in words is "eighteen million, nine hundred fourteen thousand, five hundred twenty-nine".