215498 has 16 divisors (see below), whose sum is σ = 349920. Its totient is φ = 99216.

The previous prime is 215497. The next prime is 215503. The reversal of 215498 is 894512.

215498 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 215498.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 215498.

It is not an unprimeable number, because it can be changed into a prime (215497) 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, 1961 + ... + 2067.

It is an arithmetic number, because the mean of its divisors is an integer number (21870).

2²¹⁵⁴⁹⁸ is an apocalyptic number.

215498 is a deficient number, since it is larger than the sum of its proper divisors (134422).

215498 is a wasteful number, since it uses less digits than its factorization.

215498 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181.

The product of its digits is 2880, while the sum is 29.

The square root of 215498 is about 464.2176213803. The cubic root of 215498 is about 59.9534824632.

The spelling of 215498 in words is "two hundred fifteen thousand, four hundred ninety-eight".