1061212516 has 60 divisors (see below), whose sum is σ = 2301020288. Its totient is φ = 419503968.

The previous prime is 1061212511. The next prime is 1061212541. The reversal of 1061212516 is 6152121601.

It is a happy number.

It is a super-2 number, since 2×1061212516² = 2252344008230100512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1061212511) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 799045 + ... + 800371.

Almost surely, 2^1061212516 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 1061212516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150510144).

1061212516 is an abundant number, since it is smaller than the sum of its proper divisors (1239807772).

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

1061212516 is an equidigital number, since it uses as much as digits as its factorization.

1061212516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1390 (or 1349 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 1061212516 is about 32576.2569366095. The cubic root of 1061212516 is about 1020.0014468774.

The spelling of 1061212516 in words is "one billion, sixty-one million, two hundred twelve thousand, five hundred sixteen".