2135252520144 has 60 divisors (see below), whose sum is σ = 6197065195776. Its totient is φ = 711750838752.

The previous prime is 2135252520131. The next prime is 2135252520151. The reversal of 2135252520144 is 4410252525312.

2135252520144 is a `hidden beast` number, since 21 + 3 + 52 + 52 + 520 + 14 + 4 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 2135252520099 and 2135252520108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 274591344 + ... + 274599119.

Almost surely, 2^{2135252520144} is an apocalyptic number.

2135252520144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2135252520144 is an abundant number, since it is smaller than the sum of its proper divisors (4061812675632).

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

2135252520144 is an equidigital number, since it uses as much as digits as its factorization.

2135252520144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549190486 (or 549190468 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The spelling of 2135252520144 in words is "two trillion, one hundred thirty-five billion, two hundred fifty-two million, five hundred twenty thousand, one hundred forty-four".