91146455 has 12 divisors (see below), whose sum is σ = 111989880. Its totient is φ = 71214192.

The previous prime is 91146437. The next prime is 91146457. The reversal of 91146455 is 55464119.

It is not a de Polignac number, because 91146455 - 2⁸ = 91146199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91146457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4316 + ... + 14174.

It is an arithmetic number, because the mean of its divisors is an integer number (9332490).

Almost surely, 2^91146455 is an apocalyptic number.

91146455 is a deficient number, since it is larger than the sum of its proper divisors (20843425).

91146455 is an equidigital number, since it uses as much as digits as its factorization.

91146455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9950 (or 9907 counting only the distinct ones).

The product of its digits is 21600, while the sum is 35.

The square root of 91146455 is about 9547.0652558784. The cubic root of 91146455 is about 450.0353141011.

The spelling of 91146455 in words is "ninety-one million, one hundred forty-six thousand, four hundred fifty-five".