135436545 has 12 divisors (see below), whose sum is σ = 234756756. Its totient is φ = 72232800.

The previous prime is 135436523. The next prime is 135436549. The reversal of 135436545 is 545634531.

135436545 is a `hidden beast` number, since 13 + 543 + 65 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 96648561 + 38787984 = 9831^2 + 6228^2 .

It is not a de Polignac number, because 135436545 - 2⁵ = 135436513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135436549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1504806 + ... + 1504895.

It is an arithmetic number, because the mean of its divisors is an integer number (19563063).

Almost surely, 2^135436545 is an apocalyptic number.

135436545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135436545 is a deficient number, since it is larger than the sum of its proper divisors (99320211).

135436545 is a wasteful number, since it uses less digits than its factorization.

135436545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3009712 (or 3009709 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 135436545 is about 11637.7207820088. The cubic root of 135436545 is about 513.5451382756.

It can be divided in two parts, 135436 and 545, that added together give a triangular number (135981 = T₅₂₁).

The spelling of 135436545 in words is "one hundred thirty-five million, four hundred thirty-six thousand, five hundred forty-five".