91049353 has 2 divisors, whose sum is σ = 91049354. Its totient is φ = 91049352.

The previous prime is 91049333. The next prime is 91049359. The reversal of 91049353 is 35394019.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 86174089 + 4875264 = 9283^2 + 2208^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91049353 is a prime.

It is equal to p_5274367 and since 91049353 and 5274367 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (91049359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45524676 + 45524677.

It is an arithmetic number, because the mean of its divisors is an integer number (45524677).

Almost surely, 2^91049353 is an apocalyptic number.

It is an amenable number.

91049353 is a deficient number, since it is larger than the sum of its proper divisors (1).

91049353 is an equidigital number, since it uses as much as digits as its factorization.

91049353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14580, while the sum is 34.

The square root of 91049353 is about 9541.9784636102. The cubic root of 91049353 is about 449.8754437163.

The spelling of 91049353 in words is "ninety-one million, forty-nine thousand, three hundred fifty-three".