91224315 has 48 divisors (see below), whose sum is σ = 194620608. Its totient is φ = 38492928.

The previous prime is 91224283. The next prime is 91224317. The reversal of 91224315 is 51342219.

It is not a de Polignac number, because 91224315 - 2⁵ = 91224283 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91224317) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7044 + ... + 15233.

It is an arithmetic number, because the mean of its divisors is an integer number (4054596).

Almost surely, 2^91224315 is an apocalyptic number.

91224315 is an abundant number, since it is smaller than the sum of its proper divisors (103396293).

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

91224315 is a wasteful number, since it uses less digits than its factorization.

91224315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22308 (or 22305 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 91224315 is about 9551.1420783067. The cubic root of 91224315 is about 450.1634221259.

The spelling of 91224315 in words is "ninety-one million, two hundred twenty-four thousand, three hundred fifteen".