91425430 has 8 divisors (see below), whose sum is σ = 164565792. Its totient is φ = 36570168.

The previous prime is 91425403. The next prime is 91425463. The reversal of 91425430 is 3452419.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4571262 + ... + 4571281.

It is an arithmetic number, because the mean of its divisors is an integer number (20570724).

Almost surely, 2^91425430 is an apocalyptic number.

91425430 is a deficient number, since it is larger than the sum of its proper divisors (73140362).

91425430 is a wasteful number, since it uses less digits than its factorization.

91425430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9142550.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 91425430 is about 9561.6646040321. The cubic root of 91425430 is about 450.4939924952.

Adding to 91425430 its reverse (3452419), we get a palindrome (94877849).

The spelling of 91425430 in words is "ninety-one million, four hundred twenty-five thousand, four hundred thirty".