91065092 has 6 divisors (see below), whose sum is σ = 159363918. Its totient is φ = 45532544.

The previous prime is 91065083. The next prime is 91065101. The reversal of 91065092 is 29056019.

It is an interprime number because it is at equal distance from previous prime (91065083) and next prime (91065101).

It can be written as a sum of positive squares in only one way, i.e., 85082176 + 5982916 = 9224^2 + 2446^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11383133 + ... + 11383140.

It is an arithmetic number, because the mean of its divisors is an integer number (26560653).

Almost surely, 2^91065092 is an apocalyptic number.

It is an amenable number.

91065092 is a deficient number, since it is larger than the sum of its proper divisors (68298826).

91065092 is a wasteful number, since it uses less digits than its factorization.

91065092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22766277 (or 22766275 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 91065092 is about 9542.8031521142. The cubic root of 91065092 is about 449.9013643898.

The spelling of 91065092 in words is "ninety-one million, sixty-five thousand, ninety-two".