4521091 has 8 divisors (see below), whose sum is σ = 4620800. Its totient is φ = 4422600.

The previous prime is 4521079. The next prime is 4521103. The reversal of 4521091 is 1901254.

It is an interprime number because it is at equal distance from previous prime (4521079) and next prime (4521103).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4521091 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4521001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11740 + ... + 12118.

It is an arithmetic number, because the mean of its divisors is an integer number (577600).

Almost surely, 2^4521091 is an apocalyptic number.

4521091 is a deficient number, since it is larger than the sum of its proper divisors (99709).

4521091 is a wasteful number, since it uses less digits than its factorization.

4521091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 4521091 is about 2126.2857286828. The cubic root of 4521091 is about 165.3538899641.

The spelling of 4521091 in words is "four million, five hundred twenty-one thousand, ninety-one".