61078349 has 2 divisors, whose sum is σ = 61078350. Its totient is φ = 61078348.

The previous prime is 61078343. The next prime is 61078373. The reversal of 61078349 is 94387016.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33062500 + 28015849 = 5750^2 + 5293^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61078349 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61078343) 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, 30539174 + 30539175.

It is an arithmetic number, because the mean of its divisors is an integer number (30539175).

Almost surely, 2^61078349 is an apocalyptic number.

It is an amenable number.

61078349 is a deficient number, since it is larger than the sum of its proper divisors (1).

61078349 is an equidigital number, since it uses as much as digits as its factorization.

61078349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 61078349 is about 7815.2638471135. The cubic root of 61078349 is about 393.8181820620.

The spelling of 61078349 in words is "sixty-one million, seventy-eight thousand, three hundred forty-nine".