4505121 has 24 divisors (see below), whose sum is σ = 6912360. Its totient is φ = 2822400.

The previous prime is 4505113. The next prime is 4505131. The reversal of 4505121 is 1215054.

It can be written as a sum of positive squares in 4 ways, for example, as 245025 + 4260096 = 495^2 + 2064^2 .

It is not a de Polignac number, because 4505121 - 2³ = 4505113 is a prime.

It is a super-2 number, since 2×4505121² = 40592230449282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4505094 and 4505103.

It is not an unprimeable number, because it can be changed into a prime (4505131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10491 + ... + 10911.

It is an arithmetic number, because the mean of its divisors is an integer number (288015).

Almost surely, 2^4505121 is an apocalyptic number.

4505121 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

4505121 is a deficient number, since it is larger than the sum of its proper divisors (2407239).

4505121 is a wasteful number, since it uses less digits than its factorization.

4505121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 4505121 is about 2122.5270316300. The cubic root of 4505121 is about 165.1589652569.

The spelling of 4505121 in words is "four million, five hundred five thousand, one hundred twenty-one".