3964656141 has 12 divisors (see below), whose sum is σ = 5733450268. Its totient is φ = 2640000384.

The previous prime is 3964656133. The next prime is 3964656167. The reversal of 3964656141 is 1416564693.

3964656141 is a `hidden beast` number, since 3 + 9 + 6 + 46 + 561 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1077743241 + 2886912900 = 32829^2 + 53730^2 .

It is not a de Polignac number, because 3964656141 - 2³ = 3964656133 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964656841) 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, 250540 + ... + 265893.

Almost surely, 2^3964656141 is an apocalyptic number.

It is an amenable number.

3964656141 is a deficient number, since it is larger than the sum of its proper divisors (1768794127).

3964656141 is a wasteful number, since it uses less digits than its factorization.

3964656141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 517292 (or 517289 counting only the distinct ones).

The product of its digits is 466560, while the sum is 45.

The square root of 3964656141 is about 62965.5154906239. The cubic root of 3964656141 is about 1582.7118068138.

The spelling of 3964656141 in words is "three billion, nine hundred sixty-four million, six hundred fifty-six thousand, one hundred forty-one".