139097 has 8 divisors (see below), whose sum is σ = 164352. Its totient is φ = 115200.

The previous prime is 139091. The next prime is 139109. The reversal of 139097 is 790931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139097 - 2⁶ = 139033 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 139097.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104 + ... + 537.

It is an arithmetic number, because the mean of its divisors is an integer number (20544).

2¹³⁹⁰⁹⁷ is an apocalyptic number.

It is an amenable number.

139097 is a deficient number, since it is larger than the sum of its proper divisors (25255).

139097 is an equidigital number, since it uses as much as digits as its factorization.

139097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 139097 is about 372.9571020908. The cubic root of 139097 is about 51.8130615085.

The spelling of 139097 in words is "one hundred thirty-nine thousand, ninety-seven".