135051566 has 16 divisors (see below), whose sum is σ = 219735600. Its totient is φ = 61881408.

The previous prime is 135051551. The next prime is 135051569. The reversal of 135051566 is 665150531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135051569) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15071 + ... + 22298.

It is an arithmetic number, because the mean of its divisors is an integer number (13733475).

Almost surely, 2^135051566 is an apocalyptic number.

135051566 is a deficient number, since it is larger than the sum of its proper divisors (84684034).

135051566 is a wasteful number, since it uses less digits than its factorization.

135051566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37523.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 135051566 is about 11621.1688740849. The cubic root of 135051566 is about 513.0580917031.

It can be divided in two parts, 1350 and 51566, that multiplied together give a triangular number (69614100 = T₁₁₇₉₉).

The spelling of 135051566 in words is "one hundred thirty-five million, fifty-one thousand, five hundred sixty-six".