611601441 has 16 divisors (see below), whose sum is σ = 928281600. Its totient is φ = 354551120.

The previous prime is 611601439. The next prime is 611601443. The reversal of 611601441 is 144106116.

It is an interprime number because it is at equal distance from previous prime (611601439) and next prime (611601443).

It is not a de Polignac number, because 611601441 - 2¹ = 611601439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (611601443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 402141 + ... + 403658.

It is an arithmetic number, because the mean of its divisors is an integer number (58017600).

Almost surely, 2^611601441 is an apocalyptic number.

It is an amenable number.

611601441 is a deficient number, since it is larger than the sum of its proper divisors (316680159).

611601441 is a wasteful number, since it uses less digits than its factorization.

611601441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805836.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 611601441 is about 24730.5770454310. The cubic root of 611601441 is about 848.8341298681.

Adding to 611601441 its reverse (144106116), we get a palindrome (755707557).

The spelling of 611601441 in words is "six hundred eleven million, six hundred one thousand, four hundred forty-one".