3945115 has 8 divisors (see below), whose sum is σ = 4801248. Its totient is φ = 3111360.

The previous prime is 3945107. The next prime is 3945119. The reversal of 3945115 is 5115493.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3945115 - 2³ = 3945107 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 (3945119) 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, 5202 + ... + 5911.

It is an arithmetic number, because the mean of its divisors is an integer number (600156).

Almost surely, 2^3945115 is an apocalyptic number.

3945115 is a deficient number, since it is larger than the sum of its proper divisors (856133).

3945115 is a wasteful number, since it uses less digits than its factorization.

3945115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11189.

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

The square root of 3945115 is about 1986.2313561114. The cubic root of 3945115 is about 158.0107213790.

It can be divided in two parts, 39 and 45115, that added together give a palindrome (45154).

The spelling of 3945115 in words is "three million, nine hundred forty-five thousand, one hundred fifteen".