91125093 has 8 divisors (see below), whose sum is σ = 121676256. Its totient is φ = 60662000.

The previous prime is 91125079. The next prime is 91125113. The reversal of 91125093 is 39052119.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91125093 - 2⁴ = 91125077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91125093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91125893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19563 + ... + 23768.

It is an arithmetic number, because the mean of its divisors is an integer number (15209532).

Almost surely, 2^91125093 is an apocalyptic number.

It is an amenable number.

91125093 is a deficient number, since it is larger than the sum of its proper divisors (30551163).

91125093 is a wasteful number, since it uses less digits than its factorization.

91125093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44035.

The product of its (nonzero) digits is 2430, while the sum is 30.

The square root of 91125093 is about 9545.9464171972. The cubic root of 91125093 is about 450.0001530864. Note that the first 3 decimals are identical.

The spelling of 91125093 in words is "ninety-one million, one hundred twenty-five thousand, ninety-three".