612137089 has 2 divisors, whose sum is σ = 612137090. Its totient is φ = 612137088.

The previous prime is 612137051. The next prime is 612137107. The reversal of 612137089 is 980731216.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 585252864 + 26884225 = 24192^2 + 5185^2 .

It is a cyclic number.

It is not a de Polignac number, because 612137089 - 2¹⁹ = 611612801 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (612137389) 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, 306068544 + 306068545.

It is an arithmetic number, because the mean of its divisors is an integer number (306068545).

Almost surely, 2^612137089 is an apocalyptic number.

It is an amenable number.

612137089 is a deficient number, since it is larger than the sum of its proper divisors (1).

612137089 is an equidigital number, since it uses as much as digits as its factorization.

612137089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 612137089 is about 24741.4043457521. The cubic root of 612137089 is about 849.0818639866.

The spelling of 612137089 in words is "six hundred twelve million, one hundred thirty-seven thousand, eighty-nine".