91445048 has 16 divisors (see below), whose sum is σ = 173125680. Its totient is φ = 45278208.

The previous prime is 91445027. The next prime is 91445051. The reversal of 91445048 is 84054419.

It is a happy number.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 91444999 and 91445017.

It is a congruent number.

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, 54665 + ... + 56312.

It is an arithmetic number, because the mean of its divisors is an integer number (10820355).

Almost surely, 2^91445048 is an apocalyptic number.

It is an amenable number.

91445048 is a deficient number, since it is larger than the sum of its proper divisors (81680632).

91445048 is a wasteful number, since it uses less digits than its factorization.

91445048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111086 (or 111082 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 91445048 is about 9562.6904164048. The cubic root of 91445048 is about 450.5262124115.

The spelling of 91445048 in words is "ninety-one million, four hundred forty-five thousand, forty-eight".