91361050 has 36 divisors (see below), whose sum is σ = 186796638. Its totient is φ = 33220000.

The previous prime is 91361047. The next prime is 91361057. The reversal of 91361050 is 5016319.

It can be written as a sum of positive squares in 3 ways, for example, as 49098049 + 42263001 = 7007^2 + 6501^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (91361057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1501 + ... + 13600.

Almost surely, 2^91361050 is an apocalyptic number.

91361050 is an abundant number, since it is smaller than the sum of its proper divisors (95435588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91361050 is a wasteful number, since it uses less digits than its factorization.

91361050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15135 (or 15119 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 91361050 is about 9558.2974425365. The cubic root of 91361050 is about 450.3882246447.

Adding to 91361050 its reverse (5016319), we get a palindrome (96377369).

The spelling of 91361050 in words is "ninety-one million, three hundred sixty-one thousand, fifty".