1098574133 has 4 divisors (see below), whose sum is σ = 1098640620. Its totient is φ = 1098507648.

The previous prime is 1098574123. The next prime is 1098574151. The reversal of 1098574133 is 3314758901.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3314758901 = 17909 ⋅185089.

It can be written as a sum of positive squares in 2 ways, for example, as 650913169 + 447660964 = 25513^2 + 21158^2 .

It is a cyclic number.

It is not a de Polignac number, because 1098574133 - 2⁴ = 1098574117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098574123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12791 + ... + 48587.

It is an arithmetic number, because the mean of its divisors is an integer number (274660155).

Almost surely, 2^1098574133 is an apocalyptic number.

It is an amenable number.

1098574133 is a deficient number, since it is larger than the sum of its proper divisors (66487).

1098574133 is an equidigital number, since it uses as much as digits as its factorization.

1098574133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66486.

The product of its (nonzero) digits is 90720, while the sum is 41.

The square root of 1098574133 is about 33144.7451792890. The cubic root of 1098574133 is about 1031.8338940663.

The spelling of 1098574133 in words is "one billion, ninety-eight million, five hundred seventy-four thousand, one hundred thirty-three".