612101617 has 2 divisors, whose sum is σ = 612101618. Its totient is φ = 612101616.

The previous prime is 612101573. The next prime is 612101627. The reversal of 612101617 is 716101216.

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., 314849536 + 297252081 = 17744^2 + 17241^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-612101617 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 612101591 and 612101600.

It is not a weakly prime, because it can be changed into another prime (612101627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306050808 + 306050809.

It is an arithmetic number, because the mean of its divisors is an integer number (306050809).

Almost surely, 2^612101617 is an apocalyptic number.

It is an amenable number.

612101617 is a deficient number, since it is larger than the sum of its proper divisors (1).

612101617 is an equidigital number, since it uses as much as digits as its factorization.

612101617 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 612101617 is about 24740.6874803430. The cubic root of 612101617 is about 849.0654628600.

The spelling of 612101617 in words is "six hundred twelve million, one hundred one thousand, six hundred seventeen".