261141733 has 2 divisors, whose sum is σ = 261141734. Its totient is φ = 261141732.

The previous prime is 261141707. The next prime is 261141761. The reversal of 261141733 is 337141162.

It is an a-pointer prime, because the next prime (261141761) can be obtained adding 261141733 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229128769 + 32012964 = 15137^2 + 5658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-261141733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (261141773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130570866 + 130570867.

It is an arithmetic number, because the mean of its divisors is an integer number (130570867).

Almost surely, 2^261141733 is an apocalyptic number.

It is an amenable number.

261141733 is a deficient number, since it is larger than the sum of its proper divisors (1).

261141733 is an equidigital number, since it uses as much as digits as its factorization.

261141733 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 28.

The square root of 261141733 is about 16159.8803522798. The cubic root of 261141733 is about 639.1833113137.

Adding to 261141733 its reverse (337141162), we get a palindrome (598282895).

It can be divided in two parts, 2611 and 41733, that added together give a palindrome (44344).

The spelling of 261141733 in words is "two hundred sixty-one million, one hundred forty-one thousand, seven hundred thirty-three".