91154455 has 12 divisors (see below), whose sum is σ = 127244520. Its totient is φ = 62505744.

The previous prime is 91154449. The next prime is 91154467. The reversal of 91154455 is 55445119.

It is a happy number.

It is not a de Polignac number, because 91154455 - 2³ = 91154447 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91154455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185785 + ... + 186274.

It is an arithmetic number, because the mean of its divisors is an integer number (10603710).

Almost surely, 2^91154455 is an apocalyptic number.

91154455 is a deficient number, since it is larger than the sum of its proper divisors (36090065).

91154455 is a wasteful number, since it uses less digits than its factorization.

91154455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372078 (or 372071 counting only the distinct ones).

The product of its digits is 18000, while the sum is 34.

The square root of 91154455 is about 9547.4842236057. The cubic root of 91154455 is about 450.0484803735.

The spelling of 91154455 in words is "ninety-one million, one hundred fifty-four thousand, four hundred fifty-five".