91375201 has 4 divisors (see below), whose sum is σ = 94526100. Its totient is φ = 88224304.

The previous prime is 91375189. The next prime is 91375217. The reversal of 91375201 is 10257319.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10257319 = 859 ⋅11941.

It can be written as a sum of positive squares in 2 ways, for example, as 70224400 + 21150801 = 8380^2 + 4599^2 .

It is a cyclic number.

It is not a de Polignac number, because 91375201 - 2⁵ = 91375169 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91375201.

It is not an unprimeable number, because it can be changed into a prime (91375231) 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, 1575406 + ... + 1575463.

It is an arithmetic number, because the mean of its divisors is an integer number (23631525).

Almost surely, 2^91375201 is an apocalyptic number.

It is an amenable number.

91375201 is a deficient number, since it is larger than the sum of its proper divisors (3150899).

91375201 is a wasteful number, since it uses less digits than its factorization.

91375201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3150898.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 91375201 is about 9559.0376607690. The cubic root of 91375201 is about 450.4114771312.

The spelling of 91375201 in words is "ninety-one million, three hundred seventy-five thousand, two hundred one".