4521131 has 4 divisors (see below), whose sum is σ = 4549032. Its totient is φ = 4493232.

The previous prime is 4521113. The next prime is 4521151. The reversal of 4521131 is 1311254.

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

It is a cyclic number.

It is not a de Polignac number, because 4521131 - 2¹⁸ = 4258987 is a prime.

It is a super-2 number, since 2×4521131² = 40881251038322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4521151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13706 + ... + 14031.

It is an arithmetic number, because the mean of its divisors is an integer number (1137258).

Almost surely, 2^4521131 is an apocalyptic number.

4521131 is a deficient number, since it is larger than the sum of its proper divisors (27901).

4521131 is a wasteful number, since it uses less digits than its factorization.

4521131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27900.

The product of its digits is 120, while the sum is 17.

The square root of 4521131 is about 2126.2951347355. The cubic root of 4521131 is about 165.3543776145.

Adding to 4521131 its reverse (1311254), we get a palindrome (5832385).

The spelling of 4521131 in words is "four million, five hundred twenty-one thousand, one hundred thirty-one".