12275545 has 16 divisors (see below), whose sum is σ = 15102720. Its totient is φ = 9576000.

The previous prime is 12275509. The next prime is 12275567. The reversal of 12275545 is 54557221.

It is not a de Polignac number, because 12275545 - 2¹¹ = 12273497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53491 + ... + 53719.

It is an arithmetic number, because the mean of its divisors is an integer number (943920).

Almost surely, 2^12275545 is an apocalyptic number.

It is an amenable number.

12275545 is a deficient number, since it is larger than the sum of its proper divisors (2827175).

12275545 is a wasteful number, since it uses less digits than its factorization.

12275545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456.

The product of its digits is 14000, while the sum is 31.

The square root of 12275545 is about 3503.6473852259. The cubic root of 12275545 is about 230.6819395351.

The spelling of 12275545 in words is "twelve million, two hundred seventy-five thousand, five hundred forty-five".