91234230 has 32 divisors (see below), whose sum is σ = 224882784. Its totient is φ = 23671296.

The previous prime is 91234217. The next prime is 91234243. The reversal of 91234230 is 3243219.

It is an interprime number because it is at equal distance from previous prime (91234217) and next prime (91234243).

It is a self number, because there is not a number n which added to its sum of digits gives 91234230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39987 + ... + 42206.

It is an arithmetic number, because the mean of its divisors is an integer number (7027587).

Almost surely, 2^91234230 is an apocalyptic number.

91234230 is an abundant number, since it is smaller than the sum of its proper divisors (133648554).

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

91234230 is a wasteful number, since it uses less digits than its factorization.

91234230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82240.

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 91234230 is about 9551.6611120789. The cubic root of 91234230 is about 450.1797306749.

Adding to 91234230 its reverse (3243219), we get a palindrome (94477449).

The spelling of 91234230 in words is "ninety-one million, two hundred thirty-four thousand, two hundred thirty".