105243500 has 24 divisors (see below), whose sum is σ = 229852896. Its totient is φ = 42097200.

The previous prime is 105243499. The next prime is 105243517. The reversal of 105243500 is 5342501.

It is a super-2 number, since 2×105243500² = 22152388584500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 104744 + ... + 105743.

It is an arithmetic number, because the mean of its divisors is an integer number (9577204).

Almost surely, 2^105243500 is an apocalyptic number.

105243500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105243500 is an abundant number, since it is smaller than the sum of its proper divisors (124609396).

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

105243500 is a wasteful number, since it uses less digits than its factorization.

105243500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210506 (or 210494 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 105243500 is about 10258.8254688341. The cubic root of 105243500 is about 472.1338017199.

Subtracting from 105243500 its reverse (5342501), we obtain a palindrome (99900999).

The spelling of 105243500 in words is "one hundred five million, two hundred forty-three thousand, five hundred".