4121563 has 4 divisors (see below), whose sum is σ = 4191480. Its totient is φ = 4051648.

The previous prime is 4121561. The next prime is 4121573. The reversal of 4121563 is 3651214.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4121563 - 2¹ = 4121561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4121561) 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, 34870 + ... + 34987.

It is an arithmetic number, because the mean of its divisors is an integer number (1047870).

Almost surely, 2^4121563 is an apocalyptic number.

4121563 is a deficient number, since it is larger than the sum of its proper divisors (69917).

4121563 is an equidigital number, since it uses as much as digits as its factorization.

4121563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69916.

The product of its digits is 720, while the sum is 22.

The square root of 4121563 is about 2030.1632939249. The cubic root of 4121563 is about 160.3321615149.

Adding to 4121563 its reverse (3651214), we get a palindrome (7772777).

The spelling of 4121563 in words is "four million, one hundred twenty-one thousand, five hundred sixty-three".