1545235203252 has 48 divisors (see below), whose sum is σ = 3936089138240. Its totient is φ = 468943872768.

The previous prime is 1545235203217. The next prime is 1545235203277. The reversal of 1545235203252 is 2523025325451.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 1545235203252.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 67833502 + ... + 67856277.

Almost surely, 2^{1545235203252} is an apocalyptic number.

1545235203252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1545235203252 is an abundant number, since it is smaller than the sum of its proper divisors (2390853934988).

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

1545235203252 is a wasteful number, since it uses less digits than its factorization.

1545235203252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135689872 (or 135689870 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 39.

The spelling of 1545235203252 in words is "one trillion, five hundred forty-five billion, two hundred thirty-five million, two hundred three thousand, two hundred fifty-two".