91342144 has 14 divisors (see below), whose sum is σ = 181257194. Its totient is φ = 45671040.

The previous prime is 91342127. The next prime is 91342187. The reversal of 91342144 is 44124319.

It can be written as a sum of positive squares in only one way, i.e., 76038400 + 15303744 = 8720^2 + 3912^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 713547 + ... + 713674.

Almost surely, 2^91342144 is an apocalyptic number.

It is an amenable number.

91342144 is a deficient number, since it is larger than the sum of its proper divisors (89915050).

91342144 is a wasteful number, since it uses less digits than its factorization.

91342144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1427233 (or 1427223 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 91342144 is about 9557.3084077056. The cubic root of 91342144 is about 450.3571551419.

The spelling of 91342144 in words is "ninety-one million, three hundred forty-two thousand, one hundred forty-four".