91230153 has 16 divisors (see below), whose sum is σ = 146334720. Its totient is φ = 49387536.

The previous prime is 91230137. The next prime is 91230163. The reversal of 91230153 is 35103219.

It is a happy number.

It is not a de Polignac number, because 91230153 - 2⁴ = 91230137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (91230163) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 113925 + ... + 114722.

It is an arithmetic number, because the mean of its divisors is an integer number (9145920).

Almost surely, 2^91230153 is an apocalyptic number.

It is an amenable number.

91230153 is a deficient number, since it is larger than the sum of its proper divisors (55104567).

91230153 is a wasteful number, since it uses less digits than its factorization.

91230153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228676.

The product of its (nonzero) digits is 810, while the sum is 24.

The square root of 91230153 is about 9551.4476913188. The cubic root of 91230153 is about 450.1730248215.

It can be divided in two parts, 912 and 30153, that multiplied together give a square (27499536 = 5244²).

The spelling of 91230153 in words is "ninety-one million, two hundred thirty thousand, one hundred fifty-three".