12150505 has 8 divisors (see below), whose sum is σ = 14599872. Its totient is φ = 9707568.

The previous prime is 12150499. The next prime is 12150533. The reversal of 12150505 is 50505121.

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 12150505 - 2⁷ = 12150377 is a prime.

It is a Duffinian number.

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, 5122 + ... + 7108.

It is an arithmetic number, because the mean of its divisors is an integer number (1824984).

Almost surely, 2^12150505 is an apocalyptic number.

It is an amenable number.

12150505 is a deficient number, since it is larger than the sum of its proper divisors (2449367).

12150505 is a wasteful number, since it uses less digits than its factorization.

12150505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3215.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 12150505 is about 3485.7574499669. The cubic root of 12150505 is about 229.8960147461.

Adding to 12150505 its reverse (50505121), we get a palindrome (62655626).

The spelling of 12150505 in words is "twelve million, one hundred fifty thousand, five hundred five".