3545011961 has 2 divisors, whose sum is σ = 3545011962. Its totient is φ = 3545011960.

The previous prime is 3545011957. The next prime is 3545011973. The reversal of 3545011961 is 1691105453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3545011600 + 361 = 59540^2 + 19^2 .

It is an emirp because it is prime and its reverse (1691105453) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3545011961 - 2² = 3545011957 is a prime.

It is not a weakly prime, because it can be changed into another prime (3545011661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1772505980 + 1772505981.

It is an arithmetic number, because the mean of its divisors is an integer number (1772505981).

Almost surely, 2^3545011961 is an apocalyptic number.

It is an amenable number.

3545011961 is a deficient number, since it is larger than the sum of its proper divisors (1).

3545011961 is an equidigital number, since it uses as much as digits as its factorization.

3545011961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 35.

The square root of 3545011961 is about 59540.0030315753. The cubic root of 3545011961 is about 1524.7754876510.

The spelling of 3545011961 in words is "three billion, five hundred forty-five million, eleven thousand, nine hundred sixty-one".