91945235 has 4 divisors (see below), whose sum is σ = 110334288. Its totient is φ = 73556184.

The previous prime is 91945229. The next prime is 91945253. The reversal of 91945235 is 53254919.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 91945235 - 2¹² = 91941139 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9194519 + ... + 9194528.

It is an arithmetic number, because the mean of its divisors is an integer number (27583572).

Almost surely, 2^91945235 is an apocalyptic number.

91945235 is a deficient number, since it is larger than the sum of its proper divisors (18389053).

91945235 is a wasteful number, since it uses less digits than its factorization.

91945235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18389052.

The product of its digits is 48600, while the sum is 38.

The square root of 91945235 is about 9588.8077986786. The cubic root of 91945235 is about 451.3461501208.

The spelling of 91945235 in words is "ninety-one million, nine hundred forty-five thousand, two hundred thirty-five".