1001243198 has 8 divisors (see below), whose sum is σ = 1502673120. Its totient is φ = 500352160.

The previous prime is 1001243179. The next prime is 1001243219. The reversal of 1001243198 is 8913421001.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001243198.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130043 + ... + 137526.

It is an arithmetic number, because the mean of its divisors is an integer number (187834140).

Almost surely, 2^1001243198 is an apocalyptic number.

1001243198 is a deficient number, since it is larger than the sum of its proper divisors (501429922).

1001243198 is a wasteful number, since it uses less digits than its factorization.

1001243198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269442.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 1001243198 is about 31642.4271825029. The cubic root of 1001243198 is about 1000.4142277250.

Adding to 1001243198 its reverse (8913421001), we get a palindrome (9914664199).

The spelling of 1001243198 in words is "one billion, one million, two hundred forty-three thousand, one hundred ninety-eight".