91125032 has 16 divisors (see below), whose sum is σ = 180910260. Its totient is φ = 42882304.

The previous prime is 91125031. The next prime is 91125059. The reversal of 91125032 is 23052119.

It can be written as a sum of positive squares in 2 ways, for example, as 83429956 + 7695076 = 9134^2 + 2774^2 .

It is a junction number, because it is equal to n+sod(n) for n = 91124989 and 91125007.

It is not an unprimeable number, because it can be changed into a prime (91125031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334883 + ... + 335154.

Almost surely, 2^91125032 is an apocalyptic number.

It is an amenable number.

91125032 is a deficient number, since it is larger than the sum of its proper divisors (89785228).

91125032 is a wasteful number, since it uses less digits than its factorization.

91125032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670060 (or 670056 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 91125032 is about 9545.9432221232. The cubic root of 91125032 is about 450.0000526749. Note that the first 4 decimals are identical.

It can be divided in two parts, 911250 and 32, that multiplied together give a square (29160000 = 5400²).

The spelling of 91125032 in words is "ninety-one million, one hundred twenty-five thousand, thirty-two".