3531481 has 2 divisors, whose sum is σ = 3531482. Its totient is φ = 3531480.

The previous prime is 3531467. The next prime is 3531487. The reversal of 3531481 is 1841353.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2277081 + 1254400 = 1509^2 + 1120^2 .

It is a cyclic number.

It is not a de Polignac number, because 3531481 - 2¹¹ = 3529433 is a prime.

It is a super-2 number, since 2×3531481² = 24942716106722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3531487) 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 as a sum of consecutive naturals, namely, 1765740 + 1765741.

It is an arithmetic number, because the mean of its divisors is an integer number (1765741).

Almost surely, 2^3531481 is an apocalyptic number.

It is an amenable number.

3531481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3531481 is an equidigital number, since it uses as much as digits as its factorization.

3531481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 3531481 is about 1879.2235098572. The cubic root of 3531481 is about 152.2833041628.

The spelling of 3531481 in words is "three million, five hundred thirty-one thousand, four hundred eighty-one".