105210061 has 8 divisors (see below), whose sum is σ = 115183584. Its totient is φ = 95304720.

The previous prime is 105210047. The next prime is 105210089. The reversal of 105210061 is 160012501.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105210061 is a prime.

It is a super-2 number, since 2×105210061² = 22138313871247442, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105210031) 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, 13786 + ... + 20011.

It is an arithmetic number, because the mean of its divisors is an integer number (14397948).

Almost surely, 2^105210061 is an apocalyptic number.

105210061 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105210061 is a deficient number, since it is larger than the sum of its proper divisors (9973523).

105210061 is a wasteful number, since it uses less digits than its factorization.

105210061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34091.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 105210061 is about 10257.1955718900. The cubic root of 105210061 is about 472.0837927579.

Adding to 105210061 its reverse (160012501), we get a palindrome (265222562).

The spelling of 105210061 in words is "one hundred five million, two hundred ten thousand, sixty-one".