1061961152 has 84 divisors (see below), whose sum is σ = 2518202736. Its totient is φ = 435240960.

The previous prime is 1061961143. The next prime is 1061961163. The reversal of 1061961152 is 2511691601.

It is a super-2 number, since 2×1061961152² = 2255522976714334208, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 234752 + ... + 239232.

It is an arithmetic number, because the mean of its divisors is an integer number (29978604).

Almost surely, 2^1061961152 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 1061961152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1259101368).

1061961152 is an abundant number, since it is smaller than the sum of its proper divisors (1456241584).

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

1061961152 is an equidigital number, since it uses as much as digits as its factorization.

1061961152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4546 (or 4513 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 32.

The square root of 1061961152 is about 32587.7454267705. The cubic root of 1061961152 is about 1020.2412450008.

The spelling of 1061961152 in words is "one billion, sixty-one million, nine hundred sixty-one thousand, one hundred fifty-two".