18982129 has 8 divisors (see below), whose sum is σ = 19415520. Its totient is φ = 18552576.

The previous prime is 18982127. The next prime is 18982141. The reversal of 18982129 is 92128981.

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 18982129 - 2¹ = 18982127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18982091 and 18982100.

It is not an unprimeable number, because it can be changed into a prime (18982127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is an upside-down number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10554 + ... + 12220.

It is an arithmetic number, because the mean of its divisors is an integer number (2426940).

Almost surely, 2^18982129 is an apocalyptic number.

It is an amenable number.

18982129 is a deficient number, since it is larger than the sum of its proper divisors (433391).

18982129 is a wasteful number, since it uses less digits than its factorization.

18982129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1919.

The product of its digits is 20736, while the sum is 40.

The square root of 18982129 is about 4356.8485169902. The cubic root of 18982129 is about 266.7564772146.

The spelling of 18982129 in words is "eighteen million, nine hundred eighty-two thousand, one hundred twenty-nine".