91032130 has 32 divisors (see below), whose sum is σ = 190344960. Its totient is φ = 30697920.

The previous prime is 91032107. The next prime is 91032133. The reversal of 91032130 is 3123019.

It is a junction number, because it is equal to n+sod(n) for n = 91032098 and 91032107.

It is not an unprimeable number, because it can be changed into a prime (91032133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6390 + ... + 14929.

It is an arithmetic number, because the mean of its divisors is an integer number (5948280).

Almost surely, 2^91032130 is an apocalyptic number.

91032130 is an abundant number, since it is smaller than the sum of its proper divisors (99312830).

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

91032130 is a wasteful number, since it uses less digits than its factorization.

91032130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21394.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 91032130 is about 9541.0759351344. The cubic root of 91032130 is about 449.8470756093.

Adding to 91032130 its reverse (3123019), we get a palindrome (94155149).

The spelling of 91032130 in words is "ninety-one million, thirty-two thousand, one hundred thirty".