9012855155 has 4 divisors (see below), whose sum is σ = 10815426192. Its totient is φ = 7210284120.

The previous prime is 9012855121. The next prime is 9012855179. The reversal of 9012855155 is 5515582109.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 9012855155 - 2¹² = 9012851059 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 901285511 + ... + 901285520.

It is an arithmetic number, because the mean of its divisors is an integer number (2703856548).

Almost surely, 2^9012855155 is an apocalyptic number.

9012855155 is a deficient number, since it is larger than the sum of its proper divisors (1802571037).

9012855155 is a wasteful number, since it uses less digits than its factorization.

9012855155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1802571036.

The product of its (nonzero) digits is 90000, while the sum is 41.

The square root of 9012855155 is about 94936.0582444837. The cubic root of 9012855155 is about 2081.0737148586.

The spelling of 9012855155 in words is "nine billion, twelve million, eight hundred fifty-five thousand, one hundred fifty-five".