91287126 has 48 divisors (see below), whose sum is σ = 233346048. Its totient is φ = 25239600.

The previous prime is 91287109. The next prime is 91287137. The reversal of 91287126 is 62178219.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7780 + ... + 15591.

It is an arithmetic number, because the mean of its divisors is an integer number (4861376).

Almost surely, 2^91287126 is an apocalyptic number.

91287126 is an abundant number, since it is smaller than the sum of its proper divisors (142058922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91287126 is a wasteful number, since it uses less digits than its factorization.

91287126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23417 (or 23414 counting only the distinct ones).

The product of its digits is 12096, while the sum is 36.

The square root of 91287126 is about 9554.4296533074. The cubic root of 91287126 is about 450.2667159597.

The spelling of 91287126 in words is "ninety-one million, two hundred eighty-seven thousand, one hundred twenty-six".