105503130 has 24 divisors (see below), whose sum is σ = 274308372. Its totient is φ = 28134144.

The previous prime is 105503129. The next prime is 105503141. The reversal of 105503130 is 31305501.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 104468841 + 1034289 = 10221^2 + 1017^2 .

It is a super-2 number, since 2×105503130² = 22261820879593800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 586039 + ... + 586218.

Almost surely, 2^105503130 is an apocalyptic number.

105503130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105503130 is an abundant number, since it is smaller than the sum of its proper divisors (168805242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105503130 is a wasteful number, since it uses less digits than its factorization.

105503130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1172270 (or 1172267 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 18.

The square root of 105503130 is about 10271.4716569730. The cubic root of 105503130 is about 472.5217257164.

Adding to 105503130 its reverse (31305501), we get a palindrome (136808631).

The spelling of 105503130 in words is "one hundred five million, five hundred three thousand, one hundred thirty".