12010505 has 8 divisors (see below), whose sum is σ = 15521352. Its totient is φ = 8869248.

The previous prime is 12010501. The next prime is 12010507. The reversal of 12010505 is 50501021.

It can be written as a sum of positive squares in 4 ways, for example, as 1008016 + 11002489 = 1004^2 + 3317^2 .

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 12010505 - 2² = 12010501 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12010505.

It is not an unprimeable number, because it can be changed into a prime (12010501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92324 + ... + 92453.

It is an arithmetic number, because the mean of its divisors is an integer number (1940169).

Almost surely, 2^12010505 is an apocalyptic number.

It is an amenable number.

12010505 is a deficient number, since it is larger than the sum of its proper divisors (3510847).

12010505 is a wasteful number, since it uses less digits than its factorization.

12010505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184795.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 12010505 is about 3465.6175495862. The cubic root of 12010505 is about 229.0096358206.

Adding to 12010505 its reverse (50501021), we get a palindrome (62511526).

The spelling of 12010505 in words is "twelve million, ten thousand, five hundred five".