101345 has 4 divisors (see below), whose sum is σ = 121620. Its totient is φ = 81072.

The previous prime is 101341. The next prime is 101347. The reversal of 101345 is 543101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543101 = 13 ⋅41777.

It can be written as a sum of positive squares in 2 ways, for example, as 58081 + 43264 = 241^2 + 208^2 .

It is a cyclic number.

It is not a de Polignac number, because 101345 - 2² = 101341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101341) 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, 10130 + ... + 10139.

It is an arithmetic number, because the mean of its divisors is an integer number (30405).

2¹⁰¹³⁴⁵ is an apocalyptic number.

It is an amenable number.

101345 is a deficient number, since it is larger than the sum of its proper divisors (20275).

101345 is an equidigital number, since it uses as much as digits as its factorization.

101345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20274.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 101345 is about 318.3472946328. The cubic root of 101345 is about 46.6230601727.

Adding to 101345 its reverse (543101), we get a palindrome (644446).

The spelling of 101345 in words is "one hundred one thousand, three hundred forty-five".