3605131 has 4 divisors (see below), whose sum is σ = 3611592. Its totient is φ = 3598672.

The previous prime is 3605111. The next prime is 3605141. The reversal of 3605131 is 1315063.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3605131 - 2⁵ = 3605099 is a prime.

It is a super-3 number, since 3×3605131³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3605099 and 3605108.

It is not an unprimeable number, because it can be changed into a prime (3605111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2305 + ... + 3538.

It is an arithmetic number, because the mean of its divisors is an integer number (902898).

Almost surely, 2^3605131 is an apocalyptic number.

3605131 is a deficient number, since it is larger than the sum of its proper divisors (6461).

3605131 is an equidigital number, since it uses as much as digits as its factorization.

3605131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6460.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 3605131 is about 1898.7182518741. The cubic root of 3605131 is about 153.3346654999.

The spelling of 3605131 in words is "three million, six hundred five thousand, one hundred thirty-one".