997453182941 has 2 divisors, whose sum is σ = 997453182942. Its totient is φ = 997453182940.

The previous prime is 997453182923. The next prime is 997453182949. The reversal of 997453182941 is 149281354799.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 993153758041 + 4299424900 = 996571^2 + 65570^2 .

It is an emirp because it is prime and its reverse (149281354799) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-997453182941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (997453182949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498726591470 + 498726591471.

It is an arithmetic number, because the mean of its divisors is an integer number (498726591471).

Almost surely, 2^997453182941 is an apocalyptic number.

It is an amenable number.

997453182941 is a deficient number, since it is larger than the sum of its proper divisors (1).

997453182941 is an equidigital number, since it uses as much as digits as its factorization.

997453182941 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19595520, while the sum is 62.

The spelling of 997453182941 in words is "nine hundred ninety-seven billion, four hundred fifty-three million, one hundred eighty-two thousand, nine hundred forty-one".