91241357 has 8 divisors (see below), whose sum is σ = 91929600. Its totient is φ = 90556144.

The previous prime is 91241347. The next prime is 91241377. The reversal of 91241357 is 75314219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 91241357 - 2⁴ = 91241341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91241347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114083 + ... + 114879.

It is an arithmetic number, because the mean of its divisors is an integer number (11491200).

Almost surely, 2^91241357 is an apocalyptic number.

It is an amenable number.

91241357 is a deficient number, since it is larger than the sum of its proper divisors (688243).

91241357 is a wasteful number, since it uses less digits than its factorization.

91241357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515.

The product of its digits is 7560, while the sum is 32.

The square root of 91241357 is about 9552.0341812621. The cubic root of 91241357 is about 450.1914526912.

The spelling of 91241357 in words is "ninety-one million, two hundred forty-one thousand, three hundred fifty-seven".