134572643 has 4 divisors (see below), whose sum is σ = 138913728. Its totient is φ = 130231560.

The previous prime is 134572621. The next prime is 134572651. The reversal of 134572643 is 346275431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 134572643 - 2⁶ = 134572579 is a prime.

It is not an unprimeable number, because it can be changed into a prime (130572643) 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 3 ways as a sum of consecutive naturals, for example, 2170496 + ... + 2170557.

It is an arithmetic number, because the mean of its divisors is an integer number (34728432).

Almost surely, 2^134572643 is an apocalyptic number.

134572643 is a deficient number, since it is larger than the sum of its proper divisors (4341085).

134572643 is an equidigital number, since it uses as much as digits as its factorization.

134572643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4341084.

The product of its digits is 60480, while the sum is 35.

The square root of 134572643 is about 11600.5449440964. The cubic root of 134572643 is about 512.4509005510.

The spelling of 134572643 in words is "one hundred thirty-four million, five hundred seventy-two thousand, six hundred forty-three".