91839148 has 6 divisors (see below), whose sum is σ = 160718516. Its totient is φ = 45919572.

The previous prime is 91839133. The next prime is 91839157. The reversal of 91839148 is 84193819.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11479890 + ... + 11479897.

Almost surely, 2^91839148 is an apocalyptic number.

It is an amenable number.

91839148 is a deficient number, since it is larger than the sum of its proper divisors (68879368).

91839148 is a wasteful number, since it uses less digits than its factorization.

91839148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22959791 (or 22959789 counting only the distinct ones).

The product of its digits is 62208, while the sum is 43.

The square root of 91839148 is about 9583.2743882245. The cubic root of 91839148 is about 451.1724946242.

The spelling of 91839148 in words is "ninety-one million, eight hundred thirty-nine thousand, one hundred forty-eight".