609158243081 has 2 divisors, whose sum is σ = 609158243082. Its totient is φ = 609158243080.

The previous prime is 609158242969. The next prime is 609158243119. The reversal of 609158243081 is 180342851906.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 607900902400 + 1257340681 = 779680^2 + 35459^2 .

It is a cyclic number.

It is not a de Polignac number, because 609158243081 - 2³⁰ = 608084501257 is a prime.

It is a super-2 number, since 2×609158243081² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (609158243381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304579121540 + 304579121541.

It is an arithmetic number, because the mean of its divisors is an integer number (304579121541).

Almost surely, 2^609158243081 is an apocalyptic number.

It is an amenable number.

609158243081 is a deficient number, since it is larger than the sum of its proper divisors (1).

609158243081 is an equidigital number, since it uses as much as digits as its factorization.

609158243081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 609158243081 in words is "six hundred nine billion, one hundred fifty-eight million, two hundred forty-three thousand, eighty-one".