3915541 has 12 divisors (see below), whose sum is σ = 4668300. Its totient is φ = 3272640.

The previous prime is 3915533. The next prime is 3915553. The reversal of 3915541 is 1455193.

It can be written as a sum of positive squares in 2 ways, for example, as 1500625 + 2414916 = 1225^2 + 1554^2 .

It is not a de Polignac number, because 3915541 - 2³ = 3915533 is a prime.

It is a super-2 number, since 2×3915541² = 30662922645362, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3915511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1035 + ... + 2983.

It is an arithmetic number, because the mean of its divisors is an integer number (389025).

Almost surely, 2^3915541 is an apocalyptic number.

It is an amenable number.

3915541 is a deficient number, since it is larger than the sum of its proper divisors (752759).

3915541 is a wasteful number, since it uses less digits than its factorization.

3915541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2004 (or 1997 counting only the distinct ones).

The product of its digits is 2700, while the sum is 28.

The square root of 3915541 is about 1978.7725993656. The cubic root of 3915541 is about 157.6148955876.

The spelling of 3915541 in words is "three million, nine hundred fifteen thousand, five hundred forty-one".