1201943198 has 8 divisors (see below), whose sum is σ = 1819764792. Its totient is φ = 595354936.

The previous prime is 1201943137. The next prime is 1201943203. The reversal of 1201943198 is 8913491021.

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

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, 2808065 + ... + 2808492.

It is an arithmetic number, because the mean of its divisors is an integer number (227470599).

Almost surely, 2^1201943198 is an apocalyptic number.

1201943198 is a deficient number, since it is larger than the sum of its proper divisors (617821594).

1201943198 is a wasteful number, since it uses less digits than its factorization.

1201943198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5616666.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 1201943198 is about 34669.0524531606. The cubic root of 1201943198 is about 1063.2318587359.

The spelling of 1201943198 in words is "one billion, two hundred one million, nine hundred forty-three thousand, one hundred ninety-eight".