4135521235140 has 72 divisors (see below), whose sum is σ = 12561861836160. Its totient is φ = 1101271823424.

The previous prime is 4135521235007. The next prime is 4135521235151. The reversal of 4135521235140 is 415321255314.

4135521235140 is a `hidden beast` number, since 4 + 1 + 3 + 55 + 212 + 351 + 40 = 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 = 4135521235095 and 4135521235104.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15847714 + ... + 16106553.

It is an arithmetic number, because the mean of its divisors is an integer number (174470303280).

Almost surely, 2^{4135521235140} is an apocalyptic number.

It is an amenable number.

4135521235140 is an abundant number, since it is smaller than the sum of its proper divisors (8426340601020).

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

4135521235140 is a wasteful number, since it uses less digits than its factorization.

4135521235140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31955001 (or 31954996 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 4135521235140 in words is "four trillion, one hundred thirty-five billion, five hundred twenty-one million, two hundred thirty-five thousand, one hundred forty".