548147151997 has 2 divisors, whose sum is σ = 548147151998. Its totient is φ = 548147151996.

The previous prime is 548147151991. The next prime is 548147152031. The reversal of 548147151997 is 799151741845.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 370429259641 + 177717892356 = 608629^2 + 421566^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-548147151997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (548147151991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274073575998 + 274073575999.

It is an arithmetic number, because the mean of its divisors is an integer number (274073575999).

Almost surely, 2^548147151997 is an apocalyptic number.

It is an amenable number.

548147151997 is a deficient number, since it is larger than the sum of its proper divisors (1).

548147151997 is an equidigital number, since it uses as much as digits as its factorization.

548147151997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12700800, while the sum is 61.

The spelling of 548147151997 in words is "five hundred forty-eight billion, one hundred forty-seven million, one hundred fifty-one thousand, nine hundred ninety-seven".