4091554 has 12 divisors (see below), whose sum is σ = 6295842. Its totient is φ = 1994240.

The previous prime is 4091537. The next prime is 4091561. The reversal of 4091554 is 4551904.

It can be written as a sum of positive squares in 3 ways, for example, as 1046529 + 3045025 = 1023^2 + 1745^2 .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2754 + ... + 3970.

Almost surely, 2^4091554 is an apocalyptic number.

4091554 is a deficient number, since it is larger than the sum of its proper divisors (2204288).

4091554 is a wasteful number, since it uses less digits than its factorization.

4091554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1301 (or 1260 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 4091554 is about 2022.7590069012. The cubic root of 4091554 is about 159.9420884166.

The spelling of 4091554 in words is "four million, ninety-one thousand, five hundred fifty-four".