1098127 has 4 divisors (see below), whose sum is σ = 1104376. Its totient is φ = 1091880.

The previous prime is 1098121. The next prime is 1098133. The reversal of 1098127 is 7218901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7218901 = 149 ⋅48449.

It is an interprime number because it is at equal distance from previous prime (1098121) and next prime (1098133).

It is a cyclic number.

It is not a de Polignac number, because 1098127 - 2¹¹ = 1096079 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

1098127 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1098095 and 1098104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098121) 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, 2853 + ... + 3214.

It is an arithmetic number, because the mean of its divisors is an integer number (276094).

2^1098127 is an apocalyptic number.

1098127 is a deficient number, since it is larger than the sum of its proper divisors (6249).

1098127 is an equidigital number, since it uses as much as digits as its factorization.

1098127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6248.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 1098127 is about 1047.9155500325. The cubic root of 1098127 is about 103.1693885432.

It can be divided in two parts, 1098 and 127, that added together give a triangular number (1225 = T₄₉).

The spelling of 1098127 in words is "one million, ninety-eight thousand, one hundred twenty-seven".