61080881 has 8 divisors (see below), whose sum is σ = 66760704. Its totient is φ = 55632960.

The previous prime is 61080869. The next prime is 61080917. The reversal of 61080881 is 18808016.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61080881 is a prime.

It is a super-2 number, since 2×61080881² = 7461748047472322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61080841) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57425 + ... + 58478.

It is an arithmetic number, because the mean of its divisors is an integer number (8345088).

Almost surely, 2^61080881 is an apocalyptic number.

It is an amenable number.

61080881 is a deficient number, since it is larger than the sum of its proper divisors (5679823).

61080881 is a wasteful number, since it uses less digits than its factorization.

61080881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115951.

The product of its (nonzero) digits is 3072, while the sum is 32.

The square root of 61080881 is about 7815.4258361269. The cubic root of 61080881 is about 393.8236238914.

Adding to 61080881 its reverse (18808016), we get a palindrome (79888897).

The spelling of 61080881 in words is "sixty-one million, eighty thousand, eight hundred eighty-one".