611641201 has 2 divisors, whose sum is σ = 611641202. Its totient is φ = 611641200.

The previous prime is 611641189. The next prime is 611641213. The reversal of 611641201 is 102146116.

It is a balanced prime because it is at equal distance from previous prime (611641189) and next prime (611641213).

It can be written as a sum of positive squares in only one way, i.e., 416200801 + 195440400 = 20401^2 + 13980^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611641201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (611641241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305820600 + 305820601.

It is an arithmetic number, because the mean of its divisors is an integer number (305820601).

Almost surely, 2^611641201 is an apocalyptic number.

It is an amenable number.

611641201 is a deficient number, since it is larger than the sum of its proper divisors (1).

611641201 is an equidigital number, since it uses as much as digits as its factorization.

611641201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 611641201 is about 24731.3808955343. The cubic root of 611641201 is about 848.8525236081.

Adding to 611641201 its reverse (102146116), we get a palindrome (713787317).

The spelling of 611641201 in words is "six hundred eleven million, six hundred forty-one thousand, two hundred one".