91485461 has 2 divisors, whose sum is σ = 91485462. Its totient is φ = 91485460.

The previous prime is 91485431. The next prime is 91485463. The reversal of 91485461 is 16458419.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 50140561 + 41344900 = 7081^2 + 6430^2 .

It is a cyclic number.

It is not a de Polignac number, because 91485461 - 2¹⁸ = 91223317 is a prime.

Together with 91485463, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91485463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45742730 + 45742731.

It is an arithmetic number, because the mean of its divisors is an integer number (45742731).

Almost surely, 2^91485461 is an apocalyptic number.

It is an amenable number.

91485461 is a deficient number, since it is larger than the sum of its proper divisors (1).

91485461 is an equidigital number, since it uses as much as digits as its factorization.

91485461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 38.

The square root of 91485461 is about 9564.8032389590. The cubic root of 91485461 is about 450.5925707864.

The spelling of 91485461 in words is "ninety-one million, four hundred eighty-five thousand, four hundred sixty-one".