1061511228 has 36 divisors (see below), whose sum is σ = 2824490760. Its totient is φ = 335213856.

The previous prime is 1061511221. The next prime is 1061511239. The reversal of 1061511228 is 8221151601.

1061511228 is a `hidden beast` number, since 10 + 615 + 1 + 12 + 28 = 666.

1061511228 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×1061511228² = 2253612174340135968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1061511221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 775275 + ... + 776642.

Almost surely, 2^1061511228 is an apocalyptic number.

1061511228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1061511228 is an abundant number, since it is smaller than the sum of its proper divisors (1762979532).

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

1061511228 is a wasteful number, since it uses less digits than its factorization.

1061511228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1551946 (or 1551941 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 27.

The square root of 1061511228 is about 32580.8414255986. The cubic root of 1061511228 is about 1020.0971418439.

Adding to 1061511228 its reverse (8221151601), we get a palindrome (9282662829).

The spelling of 1061511228 in words is "one billion, sixty-one million, five hundred eleven thousand, two hundred twenty-eight".