105102730 has 8 divisors (see below), whose sum is σ = 189184932. Its totient is φ = 42041088.

The previous prime is 105102719. The next prime is 105102731. The reversal of 105102730 is 37201501.

It can be written as a sum of positive squares in 2 ways, for example, as 102758769 + 2343961 = 10137^2 + 1531^2 .

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

It is a super-2 number, since 2×105102730² = 22093167706905800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105102698 and 105102707.

It is not an unprimeable number, because it can be changed into a prime (105102731) 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, 5255127 + ... + 5255146.

Almost surely, 2^105102730 is an apocalyptic number.

105102730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105102730 is a deficient number, since it is larger than the sum of its proper divisors (84082202).

105102730 is a wasteful number, since it uses less digits than its factorization.

105102730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510280.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 105102730 is about 10251.9622511985. The cubic root of 105102730 is about 471.9232046131.

The spelling of 105102730 in words is "one hundred five million, one hundred two thousand, seven hundred thirty".