12151524545 has 16 divisors (see below), whose sum is σ = 14638397328. Its totient is φ = 9683554560.

The previous prime is 12151524533. The next prime is 12151524547. The reversal of 12151524545 is 54542515121.

It can be written as a sum of positive squares in 8 ways, for example, as 1235663104 + 10915861441 = 35152^2 + 104479^2 .

It is not a de Polignac number, because 12151524545 - 2⁶ = 12151524481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12151524547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4343087 + ... + 4345883.

It is an arithmetic number, because the mean of its divisors is an integer number (914899833).

Almost surely, 2^12151524545 is an apocalyptic number.

It is an amenable number.

12151524545 is a deficient number, since it is larger than the sum of its proper divisors (2486872783).

12151524545 is a wasteful number, since it uses less digits than its factorization.

12151524545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5860.

The product of its digits is 40000, while the sum is 35.

The spelling of 12151524545 in words is "twelve billion, one hundred fifty-one million, five hundred twenty-four thousand, five hundred forty-five".