9012855156 has 24 divisors (see below), whose sum is σ = 21031560480. Its totient is φ = 3004061472.

The previous prime is 9012855121. The next prime is 9012855179. The reversal of 9012855156 is 6515582109.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252915 + ... + 286341.

It is an arithmetic number, because the mean of its divisors is an integer number (876315020).

Almost surely, 2^9012855156 is an apocalyptic number.

It is an amenable number.

9012855156 is an abundant number, since it is smaller than the sum of its proper divisors (12018705324).

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

9012855156 is a wasteful number, since it uses less digits than its factorization.

9012855156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55903 (or 55901 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 42.

The square root of 9012855156 is about 94936.0582497504. The cubic root of 9012855156 is about 2081.0737149356.

The spelling of 9012855156 in words is "nine billion, twelve million, eight hundred fifty-five thousand, one hundred fifty-six".