1051215612 has 12 divisors (see below), whose sum is σ = 2452836456. Its totient is φ = 350405200.

The previous prime is 1051215593. The next prime is 1051215619. The reversal of 1051215612 is 2165121501.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1051215612² = 2210108525825069088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1051215619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43800639 + ... + 43800662.

It is an arithmetic number, because the mean of its divisors is an integer number (204403038).

Almost surely, 2^1051215612 is an apocalyptic number.

1051215612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1051215612 is an abundant number, since it is smaller than the sum of its proper divisors (1401620844).

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

1051215612 is a wasteful number, since it uses less digits than its factorization.

1051215612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87601308 (or 87601306 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 1051215612 is about 32422.4553666128. The cubic root of 1051215612 is about 1016.7884416109.

The spelling of 1051215612 in words is "one billion, fifty-one million, two hundred fifteen thousand, six hundred twelve".