105456503 has 4 divisors (see below), whose sum is σ = 105551040. Its totient is φ = 105361968.

The previous prime is 105456493. The next prime is 105456521. The reversal of 105456503 is 305654501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305654501 = 19 ⋅16087079.

It is a cyclic number.

It is not a de Polignac number, because 105456503 - 2⁴ = 105456487 is a prime.

It is a super-2 number, since 2×105456503² = 22242148049978018, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105456523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45575 + ... + 47832.

It is an arithmetic number, because the mean of its divisors is an integer number (26387760).

Almost surely, 2^105456503 is an apocalyptic number.

105456503 is a deficient number, since it is larger than the sum of its proper divisors (94537).

105456503 is an equidigital number, since it uses as much as digits as its factorization.

105456503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94536.

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 105456503 is about 10269.2016729637. The cubic root of 105456503 is about 472.4521052953.

The spelling of 105456503 in words is "one hundred five million, four hundred fifty-six thousand, five hundred three".