105178138130 has 16 divisors (see below), whose sum is σ = 203883775704. Its totient is φ = 38835004800.

The previous prime is 105178138129. The next prime is 105178138183. The reversal of 105178138130 is 31831871501.

It can be written as a sum of positive squares in 4 ways, for example, as 63243699289 + 41934438841 = 251483^2 + 204779^2 .

It is a super-2 number, since 2×105178138130² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404531171 + ... + 404531430.

Almost surely, 2^105178138130 is an apocalyptic number.

105178138130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105178138130 is a deficient number, since it is larger than the sum of its proper divisors (98705637574).

105178138130 is a wasteful number, since it uses less digits than its factorization.

105178138130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809062621.

The product of its (nonzero) digits is 20160, while the sum is 38.

The spelling of 105178138130 in words is "one hundred five billion, one hundred seventy-eight million, one hundred thirty-eight thousand, one hundred thirty".