611625197 has 2 divisors, whose sum is σ = 611625198. Its totient is φ = 611625196.

The previous prime is 611625191. The next prime is 611625229. The reversal of 611625197 is 791526116.

611625197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 585930436 + 25694761 = 24206^2 + 5069^2 .

It is a cyclic number.

It is not a de Polignac number, because 611625197 - 2²⁰ = 610576621 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 611625197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (611625191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305812598 + 305812599.

It is an arithmetic number, because the mean of its divisors is an integer number (305812599).

Almost surely, 2^611625197 is an apocalyptic number.

It is an amenable number.

611625197 is a deficient number, since it is larger than the sum of its proper divisors (1).

611625197 is an equidigital number, since it uses as much as digits as its factorization.

611625197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22680, while the sum is 38.

The square root of 611625197 is about 24731.0573368791. The cubic root of 611625197 is about 848.8451199461.

It can be divided in two parts, 6116 and 25197, that added together give a palindrome (31313).

The spelling of 611625197 in words is "six hundred eleven million, six hundred twenty-five thousand, one hundred ninety-seven".