91452266 has 4 divisors (see below), whose sum is σ = 137178402. Its totient is φ = 45726132.

The previous prime is 91452247. The next prime is 91452287. The reversal of 91452266 is 66225419.

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: 66225419 = 13 ⋅5094263.

It can be written as a sum of positive squares in only one way, i.e., 79584241 + 11868025 = 8921^2 + 3445^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22863065 + ... + 22863068.

Almost surely, 2^91452266 is an apocalyptic number.

91452266 is a deficient number, since it is larger than the sum of its proper divisors (45726136).

91452266 is a wasteful number, since it uses less digits than its factorization.

91452266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45726135.

The product of its digits is 25920, while the sum is 35.

The square root of 91452266 is about 9563.0678132072. The cubic root of 91452266 is about 450.5380658423.

It can be divided in two parts, 9145 and 2266, that added together give a palindrome (11411).

The spelling of 91452266 in words is "ninety-one million, four hundred fifty-two thousand, two hundred sixty-six".