3135481 has 4 divisors (see below), whose sum is σ = 3149172. Its totient is φ = 3121792.

The previous prime is 3135469. The next prime is 3135487. The reversal of 3135481 is 1845313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1845313 = 23 ⋅80231.

It can be written as a sum of positive squares in 2 ways, for example, as 2250000 + 885481 = 1500^2 + 941^2 .

It is a 3-Lehmer number, since φ(3135481) divides (3135481-1)³.

It is a cyclic number.

It is not a de Polignac number, because 3135481 - 2⁵ = 3135449 is a prime.

It is a super-2 number, since 2×3135481² = 19662482202722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3135487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6496 + ... + 6961.

It is an arithmetic number, because the mean of its divisors is an integer number (787293).

Almost surely, 2^3135481 is an apocalyptic number.

It is an amenable number.

3135481 is a deficient number, since it is larger than the sum of its proper divisors (13691).

3135481 is a wasteful number, since it uses less digits than its factorization.

3135481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13690.

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

The square root of 3135481 is about 1770.7289459429. The cubic root of 3135481 is about 146.3641532120.

The spelling of 3135481 in words is "three million, one hundred thirty-five thousand, four hundred eighty-one".