105500451 has 8 divisors (see below), whose sum is σ = 160762624. Its totient is φ = 60285960.

The previous prime is 105500449. The next prime is 105500489. The reversal of 105500451 is 154005501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105500451 - 2¹ = 105500449 is a prime.

It is a super-2 number, since 2×105500451² = 22260690322406802, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 5023831 = 105500451 / (1 + 0 + 5 + 5 + 0 + 0 + 4 + 5 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105500441) 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, 2511895 + ... + 2511936.

It is an arithmetic number, because the mean of its divisors is an integer number (20095328).

Almost surely, 2^105500451 is an apocalyptic number.

105500451 is a deficient number, since it is larger than the sum of its proper divisors (55262173).

105500451 is an equidigital number, since it uses as much as digits as its factorization.

105500451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5023841.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 105500451 is about 10271.3412464001. The cubic root of 105500451 is about 472.5177261623.

Adding to 105500451 its reverse (154005501), we get a palindrome (259505952).

The spelling of 105500451 in words is "one hundred five million, five hundred thousand, four hundred fifty-one".