134645441 has 4 divisors (see below), whose sum is σ = 153880512. Its totient is φ = 115410372.

The previous prime is 134645437. The next prime is 134645443. The reversal of 134645441 is 144546431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 144546431 = 379 ⋅381389.

It is not a de Polignac number, because 134645441 - 2² = 134645437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134645398 and 134645407.

It is not an unprimeable number, because it can be changed into a prime (134645443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9617525 + ... + 9617538.

It is an arithmetic number, because the mean of its divisors is an integer number (38470128).

Almost surely, 2^134645441 is an apocalyptic number.

It is an amenable number.

134645441 is a deficient number, since it is larger than the sum of its proper divisors (19235071).

134645441 is an equidigital number, since it uses as much as digits as its factorization.

134645441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19235070.

The product of its digits is 23040, while the sum is 32.

The square root of 134645441 is about 11603.6822172964. The cubic root of 134645441 is about 512.5432885109.

The spelling of 134645441 in words is "one hundred thirty-four million, six hundred forty-five thousand, four hundred forty-one".