611272117 has 4 divisors (see below), whose sum is σ = 611435916. Its totient is φ = 611108320.

The previous prime is 611272091. The next prime is 611272139. The reversal of 611272117 is 711272116.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 236113956 + 375158161 = 15366^2 + 19369^2 .

It is a cyclic number.

It is not a de Polignac number, because 611272117 - 2¹⁹ = 610747829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611272147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 76168 + ... + 83809.

It is an arithmetic number, because the mean of its divisors is an integer number (152858979).

Almost surely, 2^611272117 is an apocalyptic number.

It is an amenable number.

611272117 is a deficient number, since it is larger than the sum of its proper divisors (163799).

611272117 is a wasteful number, since it uses less digits than its factorization.

611272117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163798.

The product of its digits is 1176, while the sum is 28.

The square root of 611272117 is about 24723.9179136317. The cubic root of 611272117 is about 848.6817476023.

Subtracting 611272117 from its reverse (711272116), we obtain a palindrome (99999999).

The spelling of 611272117 in words is "six hundred eleven million, two hundred seventy-two thousand, one hundred seventeen".