1061232156 has 72 divisors (see below), whose sum is σ = 2835203280. Its totient is φ = 333766656.

The previous prime is 1061232143. The next prime is 1061232163. The reversal of 1061232156 is 6512321601.

1061232156 is a `hidden beast` number, since 1 + 0 + 612 + 32 + 15 + 6 = 666.

1061232156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1061232156² = 2252427377856816672, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 172770 + ... + 178806.

Almost surely, 2^1061232156 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 1061232156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1417601640).

1061232156 is an abundant number, since it is smaller than the sum of its proper divisors (1773971124).

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

1061232156 is a wasteful number, since it uses less digits than its factorization.

1061232156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6323 (or 6318 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 1061232156 is about 32576.5583817567. The cubic root of 1061232156 is about 1020.0077392723.

Adding to 1061232156 its reverse (6512321601), we get a palindrome (7573553757).

The spelling of 1061232156 in words is "one billion, sixty-one million, two hundred thirty-two thousand, one hundred fifty-six".