61102861 has 8 divisors (see below), whose sum is σ = 62717760. Its totient is φ = 59508768.

The previous prime is 61102859. The next prime is 61102889. The reversal of 61102861 is 16820116.

61102861 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 61102861 - 2¹ = 61102859 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61102831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 840 + ... + 11086.

It is an arithmetic number, because the mean of its divisors is an integer number (7839720).

Almost surely, 2^61102861 is an apocalyptic number.

It is an amenable number.

61102861 is a deficient number, since it is larger than the sum of its proper divisors (1614899).

61102861 is a wasteful number, since it uses less digits than its factorization.

61102861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10403.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 61102861 is about 7816.8319030154. The cubic root of 61102861 is about 393.8708574665.

Adding to 61102861 its reverse (16820116), we get a palindrome (77922977).

It can be divided in two parts, 6 and 1102861, that multiplied together give a palindrome (6617166).

The spelling of 61102861 in words is "sixty-one million, one hundred two thousand, eight hundred sixty-one".