1065212140 has 12 divisors (see below), whose sum is σ = 2236945536. Its totient is φ = 426084848.

The previous prime is 1065212117. The next prime is 1065212147. The reversal of 1065212140 is 412125601.

It is a super-2 number, since 2×1065212140² = 2269353806406759200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1065212147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26630284 + ... + 26630323.

It is an arithmetic number, because the mean of its divisors is an integer number (186412128).

Almost surely, 2^1065212140 is an apocalyptic number.

1065212140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1065212140 is an abundant number, since it is smaller than the sum of its proper divisors (1171733396).

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

1065212140 is a wasteful number, since it uses less digits than its factorization.

1065212140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53260616 (or 53260614 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1065212140 is about 32637.5878397899. The cubic root of 1065212140 is about 1021.2812746388.

Adding to 1065212140 its reverse (412125601), we get a palindrome (1477337741).

The spelling of 1065212140 in words is "one billion, sixty-five million, two hundred twelve thousand, one hundred forty".