61161383 has 2 divisors, whose sum is σ = 61161384. Its totient is φ = 61161382.

The previous prime is 61161379. The next prime is 61161403. The reversal of 61161383 is 38316116.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61161383 - 2² = 61161379 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61161343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30580691 + 30580692.

It is an arithmetic number, because the mean of its divisors is an integer number (30580692).

Almost surely, 2^61161383 is an apocalyptic number.

61161383 is a deficient number, since it is larger than the sum of its proper divisors (1).

61161383 is an equidigital number, since it uses as much as digits as its factorization.

61161383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 61161383 is about 7820.5743395226. The cubic root of 61161383 is about 393.9965621935.

Adding to 61161383 its reverse (38316116), we get a palindrome (99477499).

The spelling of 61161383 in words is "sixty-one million, one hundred sixty-one thousand, three hundred eighty-three".