3952161 has 12 divisors (see below), whose sum is σ = 5747092. Its totient is φ = 2617056.

The previous prime is 3952127. The next prime is 3952163. The reversal of 3952161 is 1612593.

It can be written as a sum of positive squares in 2 ways, for example, as 2047761 + 1904400 = 1431^2 + 1380^2 .

It is not a de Polignac number, because 3952161 - 2¹⁵ = 3919393 is a prime.

It is a Duffinian number.

3952161 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3952163) 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, 15 + ... + 2811.

Almost surely, 2^3952161 is an apocalyptic number.

It is an amenable number.

3952161 is a deficient number, since it is larger than the sum of its proper divisors (1794931).

3952161 is a wasteful number, since it uses less digits than its factorization.

3952161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2960 (or 2957 counting only the distinct ones).

The product of its digits is 1620, while the sum is 27.

The square root of 3952161 is about 1988.0042756493. The cubic root of 3952161 is about 158.1047348097.

It can be divided in two parts, 395 and 2161, that added together give a triangular number (2556 = T₇₁).

The spelling of 3952161 in words is "three million, nine hundred fifty-two thousand, one hundred sixty-one".