101098 has 4 divisors (see below), whose sum is σ = 151650. Its totient is φ = 50548.

The previous prime is 101089. The next prime is 101107. The reversal of 101098 is 890101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 890101 = 113 ⋅7877.

It is an interprime number because it is at equal distance from previous prime (101089) and next prime (101107).

It can be written as a sum of positive squares in only one way, i.e., 74529 + 26569 = 273^2 + 163^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25273 + ... + 25276.

2¹⁰¹⁰⁹⁸ is an apocalyptic number.

101098 is a deficient number, since it is larger than the sum of its proper divisors (50552).

101098 is an equidigital number, since it uses as much as digits as its factorization.

101098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50551.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 101098 is about 317.9591168688. The cubic root of 101098 is about 46.5851524840.

Adding to 101098 its reverse (890101), we get a palindrome (991199).

The spelling of 101098 in words is "one hundred one thousand, ninety-eight".