91250395 has 4 divisors (see below), whose sum is σ = 109500480. Its totient is φ = 73000312.

The previous prime is 91250381. The next prime is 91250417. The reversal of 91250395 is 59305219.

It is a happy number.

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 91250395 - 2⁵ = 91250363 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91250395.

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, 9125035 + ... + 9125044.

It is an arithmetic number, because the mean of its divisors is an integer number (27375120).

Almost surely, 2^91250395 is an apocalyptic number.

91250395 is a deficient number, since it is larger than the sum of its proper divisors (18250085).

91250395 is a wasteful number, since it uses less digits than its factorization.

91250395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18250084.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 91250395 is about 9552.5072624940. The cubic root of 91250395 is about 450.2063169156.

The spelling of 91250395 in words is "ninety-one million, two hundred fifty thousand, three hundred ninety-five".