3581123 has 32 divisors (see below), whose sum is σ = 4838400. Its totient is φ = 2572416.

The previous prime is 3581117. The next prime is 3581129. The reversal of 3581123 is 3211853.

3581123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3581117) and next prime (3581129).

It is not a de Polignac number, because 3581123 - 2⁴ = 3581107 is a prime.

It is a super-2 number, since 2×3581123² = 25648883882258, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3581129) 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 31 ways as a sum of consecutive naturals, for example, 60668 + ... + 60726.

It is an arithmetic number, because the mean of its divisors is an integer number (151200).

Almost surely, 2^3581123 is an apocalyptic number.

3581123 is a deficient number, since it is larger than the sum of its proper divisors (1257277).

3581123 is a wasteful number, since it uses less digits than its factorization.

3581123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131.

The product of its digits is 720, while the sum is 23.

The square root of 3581123 is about 1892.3855315448. The cubic root of 3581123 is about 152.9935349768.

Adding to 3581123 its reverse (3211853), we get a palindrome (6792976).

The spelling of 3581123 in words is "three million, five hundred eighty-one thousand, one hundred twenty-three".