105402130 has 16 divisors (see below), whose sum is σ = 190016280. Its totient is φ = 42095872.

The previous prime is 105402119. The next prime is 105402131. The reversal of 105402130 is 31204501.

It can be written as a sum of positive squares in 4 ways, for example, as 102272769 + 3129361 = 10113^2 + 1769^2 .

It is a super-2 number, since 2×105402130² = 22219218017073800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105402131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015 + ... + 14554.

Almost surely, 2^105402130 is an apocalyptic number.

105402130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105402130 is a deficient number, since it is larger than the sum of its proper divisors (84614150).

105402130 is a wasteful number, since it uses less digits than its factorization.

105402130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16253.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 105402130 is about 10266.5539495977. The cubic root of 105402130 is about 472.3708931246.

Adding to 105402130 its reverse (31204501), we get a palindrome (136606631).

The spelling of 105402130 in words is "one hundred five million, four hundred two thousand, one hundred thirty".