101555 has 8 divisors (see below), whose sum is σ = 128400. Its totient is φ = 76896.

The previous prime is 101537. The next prime is 101561. The reversal of 101555 is 555101.

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 101555 - 2¹² = 97459 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440 + ... + 629.

It is an arithmetic number, because the mean of its divisors is an integer number (16050).

2¹⁰¹⁵⁵⁵ is an apocalyptic number.

101555 is a deficient number, since it is larger than the sum of its proper divisors (26845).

101555 is a wasteful number, since it uses less digits than its factorization.

101555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093.

The product of its (nonzero) digits is 125, while the sum is 17.

The square root of 101555 is about 318.6769524142. The cubic root of 101555 is about 46.6552409670.

Adding to 101555 its reverse (555101), we get a palindrome (656656).

It can be divided in two parts, 101 and 555, that added together give a palindrome (656).

The spelling of 101555 in words is "one hundred one thousand, five hundred fifty-five".