91651353 has 4 divisors (see below), whose sum is σ = 122201808. Its totient is φ = 61100900.

The previous prime is 91651337. The next prime is 91651379. The reversal of 91651353 is 35315619.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91651353 - 2⁴ = 91651337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91651303) 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, 15275223 + ... + 15275228.

It is an arithmetic number, because the mean of its divisors is an integer number (30550452).

Almost surely, 2^91651353 is an apocalyptic number.

It is an amenable number.

91651353 is a deficient number, since it is larger than the sum of its proper divisors (30550455).

91651353 is a wasteful number, since it uses less digits than its factorization.

91651353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30550454.

The product of its digits is 12150, while the sum is 33.

The square root of 91651353 is about 9573.4713140010. The cubic root of 91651353 is about 450.8647618202.

The spelling of 91651353 in words is "ninety-one million, six hundred fifty-one thousand, three hundred fifty-three".