1198512 has 120 divisors (see below), whose sum is σ = 4062240. Its totient is φ = 322560.

The previous prime is 1198511. The next prime is 1198513. The reversal of 1198512 is 2158911.

It is an interprime number because it is at equal distance from previous prime (1198511) and next prime (1198513).

It is not an unprimeable number, because it can be changed into a prime (1198511) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29212 + ... + 29252.

It is an arithmetic number, because the mean of its divisors is an integer number (33852).

2^1198512 is an apocalyptic number.

1198512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1198512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2031120).

1198512 is an abundant number, since it is smaller than the sum of its proper divisors (2863728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1198512 is a wasteful number, since it uses less digits than its factorization.

1198512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91 (or 82 counting only the distinct ones).

The product of its digits is 720, while the sum is 27.

The square root of 1198512 is about 1094.7657283638. The cubic root of 1198512 is about 106.2219155300.

The spelling of 1198512 in words is "one million, one hundred ninety-eight thousand, five hundred twelve".