134871945 has 16 divisors (see below), whose sum is σ = 232395072. Its totient is φ = 66398400.

The previous prime is 134871943. The next prime is 134871959. The reversal of 134871945 is 549178431.

It is a happy number.

It is not a de Polignac number, because 134871945 - 2¹ = 134871943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 134871897 and 134871906.

It is not an unprimeable number, because it can be changed into a prime (134871943) 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 15 ways as a sum of consecutive naturals, for example, 345631 + ... + 346020.

It is an arithmetic number, because the mean of its divisors is an integer number (14524692).

Almost surely, 2^134871945 is an apocalyptic number.

134871945 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134871945 is a deficient number, since it is larger than the sum of its proper divisors (97523127).

134871945 is a wasteful number, since it uses less digits than its factorization.

134871945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691672.

The product of its digits is 120960, while the sum is 42.

The square root of 134871945 is about 11613.4381214178. The cubic root of 134871945 is about 512.8305319721.

The spelling of 134871945 in words is "one hundred thirty-four million, eight hundred seventy-one thousand, nine hundred forty-five".