134320545 has 32 divisors (see below), whose sum is σ = 245255040. Its totient is φ = 69698880.

The previous prime is 134320541. The next prime is 134320561. The reversal of 134320545 is 545023431.

It is not a de Polignac number, because 134320545 - 2² = 134320541 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (134320541) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8451 + ... + 18440.

It is an arithmetic number, because the mean of its divisors is an integer number (7664220).

Almost surely, 2^134320545 is an apocalyptic number.

134320545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134320545 is a deficient number, since it is larger than the sum of its proper divisors (110934495).

134320545 is a wasteful number, since it uses less digits than its factorization.

134320545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26942 (or 26936 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 134320545 is about 11589.6740678934. The cubic root of 134320545 is about 512.1307052065.

Adding to 134320545 its reverse (545023431), we get a palindrome (679343976).

The spelling of 134320545 in words is "one hundred thirty-four million, three hundred twenty thousand, five hundred forty-five".