91249294 has 4 divisors (see below), whose sum is σ = 136873944. Its totient is φ = 45624646.

The previous prime is 91249273. The next prime is 91249307. The reversal of 91249294 is 49294219.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 49294219 = 13 ⋅3791863.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22812322 + ... + 22812325.

It is an arithmetic number, because the mean of its divisors is an integer number (34218486).

Almost surely, 2^91249294 is an apocalyptic number.

91249294 is a deficient number, since it is larger than the sum of its proper divisors (45624650).

91249294 is a wasteful number, since it uses less digits than its factorization.

91249294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45624649.

The product of its digits is 46656, while the sum is 40.

The square root of 91249294 is about 9552.4496334710. The cubic root of 91249294 is about 450.2045062233.

The spelling of 91249294 in words is "ninety-one million, two hundred forty-nine thousand, two hundred ninety-four".