12098459 has 4 divisors (see below), whose sum is σ = 12735240. Its totient is φ = 11461680.

The previous prime is 12098447. The next prime is 12098461. The reversal of 12098459 is 95489021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95489021 = 31 ⋅3080291.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12098459 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12098479) 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, 318362 + ... + 318399.

It is an arithmetic number, because the mean of its divisors is an integer number (3183810).

Almost surely, 2^12098459 is an apocalyptic number.

12098459 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

12098459 is a deficient number, since it is larger than the sum of its proper divisors (636781).

12098459 is an equidigital number, since it uses as much as digits as its factorization.

12098459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636780.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 12098459 is about 3478.2839159563. The cubic root of 12098459 is about 229.5672960963.

The spelling of 12098459 in words is "twelve million, ninety-eight thousand, four hundred fifty-nine".