80961101 has 8 divisors (see below), whose sum is σ = 89316024. Its totient is φ = 72910080.

The previous prime is 80961079. The next prime is 80961107. The reversal of 80961101 is 10116908.

It can be written as a sum of positive squares in 4 ways, for example, as 4818025 + 76143076 = 2195^2 + 8726^2 .

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 80961101 - 2¹⁸ = 80698957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80961107) 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, 75416 + ... + 76481.

It is an arithmetic number, because the mean of its divisors is an integer number (11164503).

Almost surely, 2^80961101 is an apocalyptic number.

It is an amenable number.

80961101 is a deficient number, since it is larger than the sum of its proper divisors (8354923).

80961101 is a wasteful number, since it uses less digits than its factorization.

80961101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151951.

The product of its (nonzero) digits is 432, while the sum is 26.

The square root of 80961101 is about 8997.8386849287. The cubic root of 80961101 is about 432.6055981920.

The spelling of 80961101 in words is "eighty million, nine hundred sixty-one thousand, one hundred one".