3918141 has 6 divisors (see below), whose sum is σ = 5659550. Its totient is φ = 2612088.

The previous prime is 3918139. The next prime is 3918149. The reversal of 3918141 is 1418193.

It can be written as a sum of positive squares in only one way, i.e., 2528100 + 1390041 = 1590^2 + 1179^2 .

It is not a de Polignac number, because 3918141 - 2¹ = 3918139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3918149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 217666 + ... + 217683.

Almost surely, 2^3918141 is an apocalyptic number.

It is an amenable number.

3918141 is a deficient number, since it is larger than the sum of its proper divisors (1741409).

3918141 is a wasteful number, since it uses less digits than its factorization.

3918141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435355 (or 435352 counting only the distinct ones).

The product of its digits is 864, while the sum is 27.

The square root of 3918141 is about 1979.4294632545. The cubic root of 3918141 is about 157.6497743828.

The spelling of 3918141 in words is "three million, nine hundred eighteen thousand, one hundred forty-one".