91245107 has 8 divisors (see below), whose sum is σ = 94522800. Its totient is φ = 87976224.

The previous prime is 91245083. The next prime is 91245113. The reversal of 91245107 is 70154219.

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 91245107 - 2⁸ = 91244851 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91245107.

It is not an unprimeable number, because it can be changed into a prime (91245197) 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, 24569 + ... + 28037.

It is an arithmetic number, because the mean of its divisors is an integer number (11815350).

Almost surely, 2^91245107 is an apocalyptic number.

91245107 is a deficient number, since it is larger than the sum of its proper divisors (3277693).

91245107 is a wasteful number, since it uses less digits than its factorization.

91245107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4405.

The product of its (nonzero) digits is 2520, while the sum is 29.

The square root of 91245107 is about 9552.2304725127. The cubic root of 91245107 is about 450.1976201971.

The spelling of 91245107 in words is "ninety-one million, two hundred forty-five thousand, one hundred seven".