61100233 has 2 divisors, whose sum is σ = 61100234. Its totient is φ = 61100232.

The previous prime is 61100231. The next prime is 61100267. The reversal of 61100233 is 33200116.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 58186384 + 2913849 = 7628^2 + 1707^2 .

It is a cyclic number.

It is not a de Polignac number, because 61100233 - 2¹ = 61100231 is a prime.

Together with 61100231, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (61100231) 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 as a sum of consecutive naturals, namely, 30550116 + 30550117.

It is an arithmetic number, because the mean of its divisors is an integer number (30550117).

Almost surely, 2^61100233 is an apocalyptic number.

It is an amenable number.

61100233 is a deficient number, since it is larger than the sum of its proper divisors (1).

61100233 is an equidigital number, since it uses as much as digits as its factorization.

61100233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 61100233 is about 7816.6638024160. The cubic root of 61100233 is about 393.8652106635.

Adding to 61100233 its reverse (33200116), we get a palindrome (94300349).

The spelling of 61100233 in words is "sixty-one million, one hundred thousand, two hundred thirty-three".