611342761 has 2 divisors, whose sum is σ = 611342762. Its totient is φ = 611342760.

The previous prime is 611342701. The next prime is 611342789. The reversal of 611342761 is 167243116.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 435515161 + 175827600 = 20869^2 + 13260^2 .

It is a cyclic number.

It is not a de Polignac number, because 611342761 - 2²³ = 602954153 is a prime.

It is not a weakly prime, because it can be changed into another prime (611342701) 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, 305671380 + 305671381.

It is an arithmetic number, because the mean of its divisors is an integer number (305671381).

Almost surely, 2^611342761 is an apocalyptic number.

It is an amenable number.

611342761 is a deficient number, since it is larger than the sum of its proper divisors (1).

611342761 is an equidigital number, since it uses as much as digits as its factorization.

611342761 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 611342761 is about 24725.3465294220. The cubic root of 611342761 is about 848.7144400602.

Adding to 611342761 its reverse (167243116), we get a palindrome (778585877).

The spelling of 611342761 in words is "six hundred eleven million, three hundred forty-two thousand, seven hundred sixty-one".