3613531 has 8 divisors (see below), whose sum is σ = 3745280. Its totient is φ = 3483648.

The previous prime is 3613523. The next prime is 3613543. The reversal of 3613531 is 1353163.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3613531 - 2³ = 3613523 is a prime.

It is a super-2 number, since 2×3613531² = 26115212575922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3613331) 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 7 ways as a sum of consecutive naturals, for example, 4315 + ... + 5083.

It is an arithmetic number, because the mean of its divisors is an integer number (468160).

Almost surely, 2^3613531 is an apocalyptic number.

3613531 is a deficient number, since it is larger than the sum of its proper divisors (131749).

3613531 is a wasteful number, since it uses less digits than its factorization.

3613531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 933.

The product of its digits is 810, while the sum is 22.

The square root of 3613531 is about 1900.9289834184. The cubic root of 3613531 is about 153.4536636835.

Adding to 3613531 its reverse (1353163), we get a palindrome (4966694).

The spelling of 3613531 in words is "three million, six hundred thirteen thousand, five hundred thirty-one".