3521123 has 4 divisors (see below), whose sum is σ = 3526848. Its totient is φ = 3515400.

The previous prime is 3521117. The next prime is 3521131. The reversal of 3521123 is 3211253.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3211253 = 1663 ⋅1931.

It is a cyclic number.

It is not a de Polignac number, because 3521123 - 2⁶ = 3521059 is a prime.

It is a super-2 number, since 2×3521123² = 24796614362258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3521113) 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, 1811 + ... + 3212.

It is an arithmetic number, because the mean of its divisors is an integer number (881712).

Almost surely, 2^3521123 is an apocalyptic number.

3521123 is a deficient number, since it is larger than the sum of its proper divisors (5725).

3521123 is an equidigital number, since it uses as much as digits as its factorization.

3521123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5724.

The product of its digits is 180, while the sum is 17.

The square root of 3521123 is about 1876.4655605686. The cubic root of 3521123 is about 152.1342736635.

Adding to 3521123 its reverse (3211253), we get a palindrome (6732376).

The spelling of 3521123 in words is "three million, five hundred twenty-one thousand, one hundred twenty-three".