91225084 has 36 divisors (see below), whose sum is σ = 170268336. Its totient is φ = 42684928.

The previous prime is 91225081. The next prime is 91225087. The reversal of 91225084 is 48052219.

It is an interprime number because it is at equal distance from previous prime (91225081) and next prime (91225087).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91225081) 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, 258252 + ... + 258604.

It is an arithmetic number, because the mean of its divisors is an integer number (4729676).

Almost surely, 2^91225084 is an apocalyptic number.

It is an amenable number.

91225084 is a deficient number, since it is larger than the sum of its proper divisors (79043252).

91225084 is a wasteful number, since it uses less digits than its factorization.

91225084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 91225084 is about 9551.1823351876. The cubic root of 91225084 is about 450.1646870470.

The spelling of 91225084 in words is "ninety-one million, two hundred twenty-five thousand, eighty-four".