91563242 has 8 divisors (see below), whose sum is σ = 144573600. Its totient is φ = 43372044.

The previous prime is 91563167. The next prime is 91563301. The reversal of 91563242 is 24236519.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 91563199 and 91563208.

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, 1204742 + ... + 1204817.

It is an arithmetic number, because the mean of its divisors is an integer number (18071700).

Almost surely, 2^91563242 is an apocalyptic number.

91563242 is a deficient number, since it is larger than the sum of its proper divisors (53010358).

91563242 is a wasteful number, since it uses less digits than its factorization.

91563242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409580.

The product of its digits is 12960, while the sum is 32.

The square root of 91563242 is about 9568.8683761456. The cubic root of 91563242 is about 450.7202326486.

The spelling of 91563242 in words is "ninety-one million, five hundred sixty-three thousand, two hundred forty-two".