18152829 has 28 divisors (see below), whose sum is σ = 27993916. Its totient is φ = 11757312.

The previous prime is 18152789. The next prime is 18152833. The reversal of 18152829 is 92825181.

It can be written as a sum of positive squares in 2 ways, for example, as 11573604 + 6579225 = 3402^2 + 2565^2 .

It is not a de Polignac number, because 18152829 - 2⁸ = 18152573 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18152793 and 18152802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18152839) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 26637 + ... + 27309.

Almost surely, 2^18152829 is an apocalyptic number.

It is an amenable number.

18152829 is a deficient number, since it is larger than the sum of its proper divisors (9841087).

18152829 is an frugal number, since it uses more digits than its factorization.

18152829 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 728 (or 713 counting only the distinct ones).

The product of its digits is 11520, while the sum is 36.

The square root of 18152829 is about 4260.6136881909. The cubic root of 18152829 is about 262.8137635876.

It can be divided in two parts, 18152 and 829, that added together give a palindrome (18981).

The spelling of 18152829 in words is "eighteen million, one hundred fifty-two thousand, eight hundred twenty-nine".