91225142032 has 20 divisors (see below), whose sum is σ = 179744455440. Its totient is φ = 44839476128.

The previous prime is 91225142017. The next prime is 91225142179. The reversal of 91225142032 is 23024152219.

It is a junction number, because it is equal to n+sod(n) for n = 91225141985 and 91225142003.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48317458 + ... + 48319345.

It is an arithmetic number, because the mean of its divisors is an integer number (8987222772).

Almost surely, 2^91225142032 is an apocalyptic number.

It is an amenable number.

91225142032 is a deficient number, since it is larger than the sum of its proper divisors (88519313408).

91225142032 is a wasteful number, since it uses less digits than its factorization.

91225142032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96636870 (or 96636864 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 91225142032 in words is "ninety-one billion, two hundred twenty-five million, one hundred forty-two thousand, thirty-two".