101000261 has 8 divisors (see below), whose sum is σ = 103992000. Its totient is φ = 98033760.

The previous prime is 101000239. The next prime is 101000267. The reversal of 101000261 is 162000101.

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 101000261 - 2⁶ = 101000197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101000267) 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, 1970 + ... + 14348.

It is an arithmetic number, because the mean of its divisors is an integer number (12999000).

Almost surely, 2^101000261 is an apocalyptic number.

It is an amenable number.

101000261 is a deficient number, since it is larger than the sum of its proper divisors (2991739).

101000261 is a wasteful number, since it uses less digits than its factorization.

101000261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12619.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 101000261 is about 10049.8886063478. Note that the first 3 decimals coincide. The cubic root of 101000261 is about 465.7013519284.

Adding to 101000261 its reverse (162000101), we get a palindrome (263000362).

The spelling of 101000261 in words is "one hundred one million, two hundred sixty-one", and thus it is an aban number.