3641139 has 8 divisors (see below), whose sum is σ = 5394320. Its totient is φ = 2427408.

The previous prime is 3641123. The next prime is 3641147. The reversal of 3641139 is 9311463.

3641139 is a `hidden beast` number, since 3 + 641 + 13 + 9 = 666.

It is not a de Polignac number, because 3641139 - 2⁴ = 3641123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 134857 = 3641139 / (3 + 6 + 4 + 1 + 1 + 3 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3641119) 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, 67402 + ... + 67455.

It is an arithmetic number, because the mean of its divisors is an integer number (674290).

Almost surely, 2^3641139 is an apocalyptic number.

3641139 is a deficient number, since it is larger than the sum of its proper divisors (1753181).

3641139 is a wasteful number, since it uses less digits than its factorization.

3641139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134866 (or 134860 counting only the distinct ones).

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

The square root of 3641139 is about 1908.1768785938. The cubic root of 3641139 is about 153.8434767675.

The spelling of 3641139 in words is "three million, six hundred forty-one thousand, one hundred thirty-nine".