134540145 has 24 divisors (see below), whose sum is σ = 235475136. Its totient is φ = 71055648.

The previous prime is 134540113. The next prime is 134540149. The reversal of 134540145 is 541045431.

It is a happy number.

It is not a de Polignac number, because 134540145 - 2⁵ = 134540113 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134540149) 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, 9879 + ... + 19148.

It is an arithmetic number, because the mean of its divisors is an integer number (9811464).

Almost surely, 2^134540145 is an apocalyptic number.

134540145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134540145 is a deficient number, since it is larger than the sum of its proper divisors (100934991).

134540145 is a wasteful number, since it uses less digits than its factorization.

134540145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29141 (or 29138 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 134540145 is about 11599.1441494621. The cubic root of 134540145 is about 512.4096465742.

Adding to 134540145 its reverse (541045431), we get a palindrome (675585576).

The spelling of 134540145 in words is "one hundred thirty-four million, five hundred forty thousand, one hundred forty-five".