12146523545 has 32 divisors (see below), whose sum is σ = 16635507840. Its totient is φ = 8434437120.

The previous prime is 12146523457. The next prime is 12146523551. The reversal of 12146523545 is 54532564121.

It is not a de Polignac number, because 12146523545 - 2⁸ = 12146523289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12146523499 and 12146523508.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1386830 + ... + 1395560.

It is an arithmetic number, because the mean of its divisors is an integer number (519859620).

Almost surely, 2^12146523545 is an apocalyptic number.

It is an amenable number.

12146523545 is a deficient number, since it is larger than the sum of its proper divisors (4488984295).

12146523545 is a wasteful number, since it uses less digits than its factorization.

12146523545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10025.

The product of its digits is 144000, while the sum is 38.

The spelling of 12146523545 in words is "twelve billion, one hundred forty-six million, five hundred twenty-three thousand, five hundred forty-five".