105012650 has 12 divisors (see below), whose sum is σ = 195323622. Its totient is φ = 42005040.

The previous prime is 105012643. The next prime is 105012653. The reversal of 105012650 is 56210501.

It can be written as a sum of positive squares in 3 ways, for example, as 91565761 + 13446889 = 9569^2 + 3667^2 .

It is a super-2 number, since 2×105012650² = 22055313320045000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (105012653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1050077 + ... + 1050176.

Almost surely, 2^105012650 is an apocalyptic number.

105012650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105012650 is a deficient number, since it is larger than the sum of its proper divisors (90310972).

105012650 is a wasteful number, since it uses less digits than its factorization.

105012650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100265 (or 2100260 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 105012650 is about 10247.5680041657. The cubic root of 105012650 is about 471.7883429308.

The spelling of 105012650 in words is "one hundred five million, twelve thousand, six hundred fifty".