91148463 has 64 divisors (see below), whose sum is σ = 163184640. Its totient is φ = 49183200.

The previous prime is 91148443. The next prime is 91148467. The reversal of 91148463 is 36484119.

It is not a de Polignac number, because 91148463 - 2⁹ = 91147951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91148467) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 275208 + ... + 275538.

It is an arithmetic number, because the mean of its divisors is an integer number (2549760).

Almost surely, 2^91148463 is an apocalyptic number.

91148463 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

91148463 is a deficient number, since it is larger than the sum of its proper divisors (72036177).

91148463 is a wasteful number, since it uses less digits than its factorization.

91148463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425 (or 419 counting only the distinct ones).

The product of its digits is 20736, while the sum is 36.

The square root of 91148463 is about 9547.1704185062. The cubic root of 91148463 is about 450.0386189079.

The spelling of 91148463 in words is "ninety-one million, one hundred forty-eight thousand, four hundred sixty-three".