134187905403 has 24 divisors (see below), whose sum is σ = 204045732800. Its totient is φ = 84743054064.

The previous prime is 134187905387. The next prime is 134187905431. The reversal of 134187905403 is 304509781431.

134187905403 is a `hidden beast` number, since 1 + 3 + 4 + 18 + 7 + 90 + 540 + 3 = 666.

It is not a de Polignac number, because 134187905403 - 2⁴ = 134187905387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134187905443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2583576 + ... + 2635002.

Almost surely, 2^134187905403 is an apocalyptic number.

134187905403 is a deficient number, since it is larger than the sum of its proper divisors (69857827397).

134187905403 is a wasteful number, since it uses less digits than its factorization.

134187905403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66711 (or 66708 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The spelling of 134187905403 in words is "one hundred thirty-four billion, one hundred eighty-seven million, nine hundred five thousand, four hundred three".