611375497 has 2 divisors, whose sum is σ = 611375498. Its totient is φ = 611375496.

The previous prime is 611375491. The next prime is 611375537. The reversal of 611375497 is 794573116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 512750736 + 98624761 = 22644^2 + 9931^2 .

It is a cyclic number.

It is not a de Polignac number, because 611375497 - 2¹⁹ = 610851209 is a prime.

It is not a weakly prime, because it can be changed into another prime (611375491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305687748 + 305687749.

It is an arithmetic number, because the mean of its divisors is an integer number (305687749).

Almost surely, 2^611375497 is an apocalyptic number.

It is an amenable number.

611375497 is a deficient number, since it is larger than the sum of its proper divisors (1).

611375497 is an equidigital number, since it uses as much as digits as its factorization.

611375497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 43.

The square root of 611375497 is about 24726.0085133044. The cubic root of 611375497 is about 848.7295886925.

The spelling of 611375497 in words is "six hundred eleven million, three hundred seventy-five thousand, four hundred ninety-seven".