91092141 has 32 divisors (see below), whose sum is σ = 154784000. Its totient is φ = 51865920.

The previous prime is 91092139. The next prime is 91092143. The reversal of 91092141 is 14129019.

It is an interprime number because it is at equal distance from previous prime (91092139) and next prime (91092143).

It is not a de Polignac number, because 91092141 - 2¹ = 91092139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91092143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65271 + ... + 66651.

It is an arithmetic number, because the mean of its divisors is an integer number (4837000).

Almost surely, 2^91092141 is an apocalyptic number.

It is an amenable number.

91092141 is a deficient number, since it is larger than the sum of its proper divisors (63691859).

91092141 is a wasteful number, since it uses less digits than its factorization.

91092141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746 (or 1740 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 91092141 is about 9544.2202929312. The cubic root of 91092141 is about 449.9459046085.

The spelling of 91092141 in words is "ninety-one million, ninety-two thousand, one hundred forty-one".