1065212105 has 8 divisors (see below), whose sum is σ = 1345531200. Its totient is φ = 807318576.

The previous prime is 1065212069. The next prime is 1065212117. The reversal of 1065212105 is 5012125601.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1065212105 - 2¹⁸ = 1064949961 is a prime.

It is a super-2 number, since 2×1065212105² = 2269353657277062050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5606285 + ... + 5606474.

It is an arithmetic number, because the mean of its divisors is an integer number (168191400).

Almost surely, 2^1065212105 is an apocalyptic number.

It is an amenable number.

1065212105 is a deficient number, since it is larger than the sum of its proper divisors (280319095).

1065212105 is a wasteful number, since it uses less digits than its factorization.

1065212105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11212783.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1065212105 is about 32637.5873035983. The cubic root of 1065212105 is about 1021.2812634533.

Adding to 1065212105 its reverse (5012125601), we get a palindrome (6077337706).

The spelling of 1065212105 in words is "one billion, sixty-five million, two hundred twelve thousand, one hundred five".