101205545 has 32 divisors (see below), whose sum is σ = 147204096. Its totient is φ = 65318400.

The previous prime is 101205541. The next prime is 101205547. The reversal of 101205545 is 545502101.

It is a happy number.

It is not a de Polignac number, because 101205545 - 2² = 101205541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 101205545.

It is not an unprimeable number, because it can be changed into a prime (101205541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38885 + ... + 41405.

It is an arithmetic number, because the mean of its divisors is an integer number (4600128).

Almost surely, 2^101205545 is an apocalyptic number.

It is an amenable number.

101205545 is a deficient number, since it is larger than the sum of its proper divisors (45998551).

101205545 is a wasteful number, since it uses less digits than its factorization.

101205545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 101205545 is about 10060.0966695157. The cubic root of 101205545 is about 466.0166525636.

Adding to 101205545 its reverse (545502101), we get a palindrome (646707646).

The spelling of 101205545 in words is "one hundred one million, two hundred five thousand, five hundred forty-five".