1198019 has 8 divisors (see below), whose sum is σ = 1254000. Its totient is φ = 1143072.

The previous prime is 1198013. The next prime is 1198033. The reversal of 1198019 is 9108911.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1198019 is a prime.

It is a super-2 number, since 2×1198019² = 2870499048722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1197982 and 1198000.

It is not an unprimeable number, because it can be changed into a prime (1198013) 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, 2972 + ... + 3350.

It is an arithmetic number, because the mean of its divisors is an integer number (156750).

2^1198019 is an apocalyptic number.

1198019 is a deficient number, since it is larger than the sum of its proper divisors (55981).

1198019 is a wasteful number, since it uses less digits than its factorization.

1198019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517.

The product of its (nonzero) digits is 648, while the sum is 29.

The square root of 1198019 is about 1094.5405428763. The cubic root of 1198019 is about 106.2073489712.

The spelling of 1198019 in words is "one million, one hundred ninety-eight thousand, nineteen".