105503030 has 16 divisors (see below), whose sum is σ = 190080000. Its totient is φ = 42162432.

The previous prime is 105503023. The next prime is 105503039. The reversal of 105503030 is 30305501.

It is a super-2 number, since 2×105503030² = 22261778678361800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105503039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8267 + ... + 16713.

It is an arithmetic number, because the mean of its divisors is an integer number (11880000).

Almost surely, 2^105503030 is an apocalyptic number.

105503030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105503030 is a deficient number, since it is larger than the sum of its proper divisors (84576970).

105503030 is a wasteful number, since it uses less digits than its factorization.

105503030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9703.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 105503030 is about 10271.4667891202. The cubic root of 105503030 is about 472.5215764248.

Adding to 105503030 its reverse (30305501), we get a palindrome (135808531).

The spelling of 105503030 in words is "one hundred five million, five hundred three thousand, thirty".