91125042 has 16 divisors (see below), whose sum is σ = 186695712. Its totient is φ = 29634080.

The previous prime is 91125031. The next prime is 91125059. The reversal of 91125042 is 24052119.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 184968 + ... + 185459.

It is an arithmetic number, because the mean of its divisors is an integer number (11668482).

Almost surely, 2^91125042 is an apocalyptic number.

91125042 is an abundant number, since it is smaller than the sum of its proper divisors (95570670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91125042 is a wasteful number, since it uses less digits than its factorization.

91125042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370473.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 91125042 is about 9545.9437459059. The cubic root of 91125042 is about 450.0000691358. Note that the first 4 decimals are identical.

The spelling of 91125042 in words is "ninety-one million, one hundred twenty-five thousand, forty-two".