91486051 has 2 divisors, whose sum is σ = 91486052. Its totient is φ = 91486050.

The previous prime is 91486001. The next prime is 91486081. The reversal of 91486051 is 15068419.

It is a strong prime.

It is an emirp because it is prime and its reverse (15068419) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91486051 - 2¹⁷ = 91354979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 91485998 and 91486016.

It is not a weakly prime, because it can be changed into another prime (91486001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45743025 + 45743026.

It is an arithmetic number, because the mean of its divisors is an integer number (45743026).

Almost surely, 2^91486051 is an apocalyptic number.

91486051 is a deficient number, since it is larger than the sum of its proper divisors (1).

91486051 is an equidigital number, since it uses as much as digits as its factorization.

91486051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 91486051 is about 9564.8340811537. The cubic root of 91486051 is about 450.5935394250.

The spelling of 91486051 in words is "ninety-one million, four hundred eighty-six thousand, fifty-one".