1545241522212 has 144 divisors (see below), whose sum is σ = 4031526949632. Its totient is φ = 498771302400.

The previous prime is 1545241522147. The next prime is 1545241522229. The reversal of 1545241522212 is 2122251425451.

It is a happy number.

1545241522212 is a `hidden beast` number, since 1 + 5 + 4 + 5 + 2 + 415 + 22 + 212 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 344686923 + ... + 344691405.

It is an arithmetic number, because the mean of its divisors is an integer number (27996714928).

Almost surely, 2^{1545241522212} is an apocalyptic number.

1545241522212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1545241522212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2015763474816).

1545241522212 is an abundant number, since it is smaller than the sum of its proper divisors (2486285427420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1545241522212 is a wasteful number, since it uses less digits than its factorization.

1545241522212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6658 (or 6653 counting only the distinct ones).

The product of its digits is 64000, while the sum is 36.

Adding to 1545241522212 its reverse (2122251425451), we get a palindrome (3667492947663).

The spelling of 1545241522212 in words is "one trillion, five hundred forty-five billion, two hundred forty-one million, five hundred twenty-two thousand, two hundred twelve".