91195545 has 16 divisors (see below), whose sum is σ = 166757760. Its totient is φ = 41689344.

The previous prime is 91195523. The next prime is 91195547. The reversal of 91195545 is 54559119.

It is not a de Polignac number, because 91195545 - 2¹² = 91191449 is a prime.

It is a super-3 number, since 3×91195545³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91195547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 434160 + ... + 434369.

It is an arithmetic number, because the mean of its divisors is an integer number (10422360).

Almost surely, 2^91195545 is an apocalyptic number.

It is an amenable number.

91195545 is a deficient number, since it is larger than the sum of its proper divisors (75562215).

91195545 is a wasteful number, since it uses less digits than its factorization.

91195545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 868544.

The product of its digits is 40500, while the sum is 39.

The square root of 91195545 is about 9549.6358569319. The cubic root of 91195545 is about 450.1160935038.

The spelling of 91195545 in words is "ninety-one million, one hundred ninety-five thousand, five hundred forty-five".