91126226 has 4 divisors (see below), whose sum is σ = 136689342. Its totient is φ = 45563112.

The previous prime is 91126201. The next prime is 91126237. The reversal of 91126226 is 62262119.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62262119 = 701 ⋅88819.

It can be written as a sum of positive squares in only one way, i.e., 80982001 + 10144225 = 8999^2 + 3185^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22781555 + ... + 22781558.

Almost surely, 2^91126226 is an apocalyptic number.

91126226 is a deficient number, since it is larger than the sum of its proper divisors (45563116).

91126226 is a wasteful number, since it uses less digits than its factorization.

91126226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45563115.

The product of its digits is 2592, while the sum is 29.

The square root of 91126226 is about 9546.0057615738. The cubic root of 91126226 is about 450.0020180979.

The spelling of 91126226 in words is "ninety-one million, one hundred twenty-six thousand, two hundred twenty-six".