134972145 has 48 divisors (see below), whose sum is σ = 291687552. Its totient is φ = 56090880.

The previous prime is 134972113. The next prime is 134972147. The reversal of 134972145 is 541279431.

It is not a de Polignac number, because 134972145 - 2⁵ = 134972113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134972147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16012 + ... + 22941.

It is an arithmetic number, because the mean of its divisors is an integer number (6076824).

Almost surely, 2^134972145 is an apocalyptic number.

134972145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

134972145 is an abundant number, since it is smaller than the sum of its proper divisors (156715407).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134972145 is a wasteful number, since it uses less digits than its factorization.

134972145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38982 (or 38979 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 134972145 is about 11617.7512884379. The cubic root of 134972145 is about 512.9574990724.

It can be divided in two parts, 134 and 972145, that added together give a palindrome (972279).

The spelling of 134972145 in words is "one hundred thirty-four million, nine hundred seventy-two thousand, one hundred forty-five".