3631081 has 8 divisors (see below), whose sum is σ = 3870720. Its totient is φ = 3394368.

The previous prime is 3631073. The next prime is 3631139. The reversal of 3631081 is 1801363.

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 3631081 - 2³ = 3631073 is a prime.

It is a super-2 number, since 2×3631081² = 26369498457122, 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 (3631031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2200 + ... + 3478.

It is an arithmetic number, because the mean of its divisors is an integer number (483840).

Almost surely, 2^3631081 is an apocalyptic number.

It is an amenable number.

3631081 is a deficient number, since it is larger than the sum of its proper divisors (239639).

3631081 is a wasteful number, since it uses less digits than its factorization.

3631081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1463.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 3631081 is about 1905.5395561363. The cubic root of 3631081 is about 153.7016910381.

It can be divided in two parts, 363 and 1081, that added together give a square (1444 = 38²).

The spelling of 3631081 in words is "three million, six hundred thirty-one thousand, eighty-one".