91052161 has 8 divisors (see below), whose sum is σ = 97059200. Its totient is φ = 85166640.

The previous prime is 91052131. The next prime is 91052167. The reversal of 91052161 is 16125019.

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

It is a cyclic number.

It is not a de Polignac number, because 91052161 - 2¹³ = 91043969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91052167) 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, 28830 + ... + 31831.

It is an arithmetic number, because the mean of its divisors is an integer number (12132400).

Almost surely, 2^91052161 is an apocalyptic number.

It is an amenable number.

91052161 is a deficient number, since it is larger than the sum of its proper divisors (6007039).

91052161 is a wasteful number, since it uses less digits than its factorization.

91052161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60759.

The product of its (nonzero) digits is 540, while the sum is 25.

The square root of 91052161 is about 9542.1256017724. The cubic root of 91052161 is about 449.8800684509.

The spelling of 91052161 in words is "ninety-one million, fifty-two thousand, one hundred sixty-one".