1125737198 has 4 divisors (see below), whose sum is σ = 1688605800. Its totient is φ = 562868598.

The previous prime is 1125737191. The next prime is 1125737201. The reversal of 1125737198 is 8917375211.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125737191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 281434298 + ... + 281434301.

It is an arithmetic number, because the mean of its divisors is an integer number (422151450).

Almost surely, 2^1125737198 is an apocalyptic number.

1125737198 is a deficient number, since it is larger than the sum of its proper divisors (562868602).

1125737198 is an equidigital number, since it uses as much as digits as its factorization.

1125737198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562868601.

The product of its digits is 105840, while the sum is 44.

The square root of 1125737198 is about 33552.0073617064. The cubic root of 1125737198 is about 1040.2690372755.

The spelling of 1125737198 in words is "one billion, one hundred twenty-five million, seven hundred thirty-seven thousand, one hundred ninety-eight".