3953145 has 16 divisors (see below), whose sum is σ = 7228800. Its totient is φ = 1807104.

The previous prime is 3953143. The next prime is 3953149. The reversal of 3953145 is 5413593.

It is not a de Polignac number, because 3953145 - 2¹ = 3953143 is a prime.

It is a Curzon number.

3953145 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3953143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18720 + ... + 18929.

It is an arithmetic number, because the mean of its divisors is an integer number (451800).

Almost surely, 2^3953145 is an apocalyptic number.

3953145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3953145 is a deficient number, since it is larger than the sum of its proper divisors (3275655).

3953145 is a wasteful number, since it uses less digits than its factorization.

3953145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37664.

The product of its digits is 8100, while the sum is 30.

The square root of 3953145 is about 1988.2517446239. The cubic root of 3953145 is about 158.1178552392.

The spelling of 3953145 in words is "three million, nine hundred fifty-three thousand, one hundred forty-five".