3443661157 has 2 divisors, whose sum is σ = 3443661158. Its totient is φ = 3443661156.

The previous prime is 3443661139. The next prime is 3443661161. The reversal of 3443661157 is 7511663443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3270238596 + 173422561 = 57186^2 + 13169^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3443661157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3443661107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1721830578 + 1721830579.

It is an arithmetic number, because the mean of its divisors is an integer number (1721830579).

Almost surely, 2^3443661157 is an apocalyptic number.

It is an amenable number.

3443661157 is a deficient number, since it is larger than the sum of its proper divisors (1).

3443661157 is an equidigital number, since it uses as much as digits as its factorization.

3443661157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 40.

The square root of 3443661157 is about 58682.7159988356. The cubic root of 3443661157 is about 1510.1038124321.

The spelling of 3443661157 in words is "three billion, four hundred forty-three million, six hundred sixty-one thousand, one hundred fifty-seven".