135616554 has 12 divisors (see below), whose sum is σ = 293835906. Its totient is φ = 45205512.

The previous prime is 135616549. The next prime is 135616567. The reversal of 135616554 is 455616531.

135616554 is a `hidden beast` number, since 1 + 35 + 616 + 5 + 5 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 113742225 + 21874329 = 10665^2 + 4677^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3767109 + ... + 3767144.

Almost surely, 2^135616554 is an apocalyptic number.

135616554 is an abundant number, since it is smaller than the sum of its proper divisors (158219352).

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

135616554 is a wasteful number, since it uses less digits than its factorization.

135616554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7534261 (or 7534258 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 135616554 is about 11645.4520736638. The cubic root of 135616554 is about 513.7725555302.

The spelling of 135616554 in words is "one hundred thirty-five million, six hundred sixteen thousand, five hundred fifty-four".