3951128141 has 2 divisors, whose sum is σ = 3951128142. Its totient is φ = 3951128140.

The previous prime is 3951128123. The next prime is 3951128149. The reversal of 3951128141 is 1418211593.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2148786025 + 1802342116 = 46355^2 + 42454^2 .

It is an emirp because it is prime and its reverse (1418211593) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3951128141 - 2²⁶ = 3884019277 is a prime.

It is a super-2 number, since 2×3951128141² = 31222827173204231762, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3951128149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1975564070 + 1975564071.

It is an arithmetic number, because the mean of its divisors is an integer number (1975564071).

Almost surely, 2^3951128141 is an apocalyptic number.

It is an amenable number.

3951128141 is a deficient number, since it is larger than the sum of its proper divisors (1).

3951128141 is an equidigital number, since it uses as much as digits as its factorization.

3951128141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 35.

The square root of 3951128141 is about 62857.9998170479. Note that the first 3 decimals coincide. The cubic root of 3951128141 is about 1580.9096056261.

The spelling of 3951128141 in words is "three billion, nine hundred fifty-one million, one hundred twenty-eight thousand, one hundred forty-one".