1098875812 has 6 divisors (see below), whose sum is σ = 1923032678. Its totient is φ = 549437904.

The previous prime is 1098875803. The next prime is 1098875819. The reversal of 1098875812 is 2185788901.

It can be written as a sum of positive squares in only one way, i.e., 588838756 + 510037056 = 24266^2 + 22584^2 .

It is not an unprimeable number, because it can be changed into a prime (1098875819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137359473 + ... + 137359480.

Almost surely, 2^1098875812 is an apocalyptic number.

It is an amenable number.

1098875812 is a deficient number, since it is larger than the sum of its proper divisors (824156866).

1098875812 is a wasteful number, since it uses less digits than its factorization.

1098875812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274718957 (or 274718955 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 49.

The square root of 1098875812 is about 33149.2957994585. The cubic root of 1098875812 is about 1031.9283359186.

The spelling of 1098875812 in words is "one billion, ninety-eight million, eight hundred seventy-five thousand, eight hundred twelve".