91345501 has 4 divisors (see below), whose sum is σ = 98372092. Its totient is φ = 84318912.

The previous prime is 91345477. The next prime is 91345531. The reversal of 91345501 is 10554319.

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

It can be written as a sum of positive squares in 2 ways, for example, as 39879225 + 51466276 = 6315^2 + 7174^2 .

It is a cyclic number.

It is not a de Polignac number, because 91345501 - 2⁵ = 91345469 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 91345501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91345531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3513276 + ... + 3513301.

It is an arithmetic number, because the mean of its divisors is an integer number (24593023).

Almost surely, 2^91345501 is an apocalyptic number.

It is an amenable number.

91345501 is a deficient number, since it is larger than the sum of its proper divisors (7026591).

91345501 is a wasteful number, since it uses less digits than its factorization.

91345501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7026590.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 91345501 is about 9557.4840308525. The cubic root of 91345501 is about 450.3626722391.

The spelling of 91345501 in words is "ninety-one million, three hundred forty-five thousand, five hundred one".