134523765 has 12 divisors (see below), whose sum is σ = 233174604. Its totient is φ = 71745984.

The previous prime is 134523761. The next prime is 134523773. The reversal of 134523765 is 567325431.

It can be written as a sum of positive squares in 2 ways, for example, as 42536484 + 91987281 = 6522^2 + 9591^2 .

It is not a de Polignac number, because 134523765 - 2² = 134523761 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134523761) 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, 1494664 + ... + 1494753.

It is an arithmetic number, because the mean of its divisors is an integer number (19431217).

Almost surely, 2^134523765 is an apocalyptic number.

134523765 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134523765 is a deficient number, since it is larger than the sum of its proper divisors (98650839).

134523765 is a wasteful number, since it uses less digits than its factorization.

134523765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2989428 (or 2989425 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 134523765 is about 11598.4380413916. The cubic root of 134523765 is about 512.3888507721.

The spelling of 134523765 in words is "one hundred thirty-four million, five hundred twenty-three thousand, seven hundred sixty-five".