3631149 has 28 divisors (see below), whose sum is σ = 5784156. Its totient is φ = 2270592.

The previous prime is 3631141. The next prime is 3631163. The reversal of 3631149 is 9411363.

It can be written as a sum of positive squares in 2 ways, for example, as 3175524 + 455625 = 1782^2 + 675^2 .

It is not a de Polignac number, because 3631149 - 2³ = 3631141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3631141) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 12247 + ... + 12539.

It is an arithmetic number, because the mean of its divisors is an integer number (206577).

Almost surely, 2^3631149 is an apocalyptic number.

It is an amenable number.

3631149 is a deficient number, since it is larger than the sum of its proper divisors (2153007).

3631149 is an equidigital number, since it uses as much as digits as its factorization.

3631149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 313 counting only the distinct ones).

The product of its digits is 1944, while the sum is 27.

The square root of 3631149 is about 1905.5573987681. The cubic root of 3631149 is about 153.7026504999.

The spelling of 3631149 in words is "three million, six hundred thirty-one thousand, one hundred forty-nine".