91750130 has 8 divisors (see below), whose sum is σ = 165150252. Its totient is φ = 36700048.

The previous prime is 91750129. The next prime is 91750163. The reversal of 91750130 is 3105719.

It can be written as a sum of positive squares in 2 ways, for example, as 91221601 + 528529 = 9551^2 + 727^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 91750130.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4587497 + ... + 4587516.

Almost surely, 2^91750130 is an apocalyptic number.

91750130 is a deficient number, since it is larger than the sum of its proper divisors (73400122).

91750130 is a wasteful number, since it uses less digits than its factorization.

91750130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9175020.

The product of its (nonzero) digits is 945, while the sum is 26.

The square root of 91750130 is about 9578.6288162764. The cubic root of 91750130 is about 451.0266764292.

Adding to 91750130 its reverse (3105719), we get a palindrome (94855849).

The spelling of 91750130 in words is "ninety-one million, seven hundred fifty thousand, one hundred thirty".