61102849 has 2 divisors, whose sum is σ = 61102850. Its totient is φ = 61102848.

The previous prime is 61102843. The next prime is 61102859. The reversal of 61102849 is 94820116.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51739249 + 9363600 = 7193^2 + 3060^2 .

It is a cyclic number.

It is not a de Polignac number, because 61102849 - 2⁷ = 61102721 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 61102849.

It is not a weakly prime, because it can be changed into another prime (61102843) 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, 30551424 + 30551425.

It is an arithmetic number, because the mean of its divisors is an integer number (30551425).

Almost surely, 2^61102849 is an apocalyptic number.

It is an amenable number.

61102849 is a deficient number, since it is larger than the sum of its proper divisors (1).

61102849 is an equidigital number, since it uses as much as digits as its factorization.

61102849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 61102849 is about 7816.8311354410. The cubic root of 61102849 is about 393.8708316824.

The spelling of 61102849 in words is "sixty-one million, one hundred two thousand, eight hundred forty-nine".