1131098 has 4 divisors (see below), whose sum is σ = 1696650. Its totient is φ = 565548.

The previous prime is 1131083. The next prime is 1131103. The reversal of 1131098 is 8901311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8901311 = 1297 ⋅6863.

It can be written as a sum of positive squares in only one way, i.e., 1067089 + 64009 = 1033^2 + 253^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282773 + ... + 282776.

2^1131098 is an apocalyptic number.

1131098 is a deficient number, since it is larger than the sum of its proper divisors (565552).

1131098 is an equidigital number, since it uses as much as digits as its factorization.

1131098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565551.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1131098 is about 1063.5309116335. The cubic root of 1131098 is about 104.1917689548.

The spelling of 1131098 in words is "one million, one hundred thirty-one thousand, ninety-eight".