3955143461 has 2 divisors, whose sum is σ = 3955143462. Its totient is φ = 3955143460.

The previous prime is 3955143421. The next prime is 3955143469. The reversal of 3955143461 is 1643415593.

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., 3669330625 + 285812836 = 60575^2 + 16906^2 .

It is a cyclic number.

It is not a de Polignac number, because 3955143461 - 2²² = 3950949157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3955143469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1977571730 + 1977571731.

It is an arithmetic number, because the mean of its divisors is an integer number (1977571731).

Almost surely, 2^3955143461 is an apocalyptic number.

It is an amenable number.

3955143461 is a deficient number, since it is larger than the sum of its proper divisors (1).

3955143461 is an equidigital number, since it uses as much as digits as its factorization.

3955143461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 194400, while the sum is 41.

The square root of 3955143461 is about 62889.9313165470. The cubic root of 3955143461 is about 1581.4449555831. Note that the first 3 decimals are identical.

The spelling of 3955143461 in words is "three billion, nine hundred fifty-five million, one hundred forty-three thousand, four hundred sixty-one".