912553128 has 240 divisors, whose sum is σ = 2788188480. Its totient is φ = 278645184.

The previous prime is 912553111. The next prime is 912553133. The reversal of 912553128 is 821355219.

912553128 is a `hidden beast` number, since 91 + 2 + 553 + 12 + 8 = 666.

It is a super-2 number, since 2×912553128² = 1665506422845168768, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 912553092 and 912553101.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 10994575 + ... + 10994657.

It is an arithmetic number, because the mean of its divisors is an integer number (11617452).

Almost surely, 2^912553128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 912553128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1394094240).

912553128 is an abundant number, since it is smaller than the sum of its proper divisors (1875635352).

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

912553128 is a wasteful number, since it uses less digits than its factorization.

912553128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 154 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 912553128 is about 30208.4943020999. The cubic root of 912553128 is about 969.9575309992.

The spelling of 912553128 in words is "nine hundred twelve million, five hundred fifty-three thousand, one hundred twenty-eight".