139098 has 16 divisors (see below), whose sum is σ = 282240. Its totient is φ = 45696.

The previous prime is 139091. The next prime is 139109. The reversal of 139098 is 890931.

It is a happy number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139098.

It is not an unprimeable number, because it can be changed into a prime (139091) by changing a digit.

139098 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 463 + ... + 701.

It is an arithmetic number, because the mean of its divisors is an integer number (17640).

2¹³⁹⁰⁹⁸ is an apocalyptic number.

139098 is an abundant number, since it is smaller than the sum of its proper divisors (143142).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139098 is a wasteful number, since it uses less digits than its factorization.

139098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 139098 is about 372.9584427252. The cubic root of 139098 is about 51.8131856735.

Adding to 139098 its sum of digits (30), we get a triangular number (139128 = T₅₂₇).

The spelling of 139098 in words is "one hundred thirty-nine thousand, ninety-eight".