134840145 has 32 divisors (see below), whose sum is σ = 245597184. Its totient is φ = 62532800.

The previous prime is 134840143. The next prime is 134840149. The reversal of 134840145 is 541048431.

It is not a de Polignac number, because 134840145 - 2¹ = 134840143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134840143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13971 + ... + 21560.

It is an arithmetic number, because the mean of its divisors is an integer number (7674912).

Almost surely, 2^134840145 is an apocalyptic number.

134840145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134840145 is a deficient number, since it is larger than the sum of its proper divisors (110757039).

134840145 is a wasteful number, since it uses less digits than its factorization.

134840145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35573.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 134840145 is about 11612.0689371016. The cubic root of 134840145 is about 512.7902238789.

Adding to 134840145 its reverse (541048431), we get a palindrome (675888576).

The spelling of 134840145 in words is "one hundred thirty-four million, eight hundred forty thousand, one hundred forty-five".