91124654 has 16 divisors (see below), whose sum is σ = 141163440. Its totient is φ = 44089920.

The previous prime is 91124653. The next prime is 91124711. The reversal of 91124654 is 45642119.

91124654 = 222² + 223² + ... + 657².

It is a self number, because there is not a number n which added to its sum of digits gives 91124654.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91124653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4514 + ... + 14234.

It is an arithmetic number, because the mean of its divisors is an integer number (8822715).

Almost surely, 2^91124654 is an apocalyptic number.

91124654 is a deficient number, since it is larger than the sum of its proper divisors (50038786).

91124654 is a wasteful number, since it uses less digits than its factorization.

91124654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9875.

The product of its digits is 8640, while the sum is 32.

The square root of 91124654 is about 9545.9234231163. The cubic root of 91124654 is about 449.9994304520. Note that the first 3 decimals are identical.

The spelling of 91124654 in words is "ninety-one million, one hundred twenty-four thousand, six hundred fifty-four".