134309573 has 4 divisors (see below), whose sum is σ = 134389248. Its totient is φ = 134229900.

The previous prime is 134309543. The next prime is 134309587. The reversal of 134309573 is 375903431.

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: 375903431 = 83 ⋅4528957.

It is a cyclic number.

It is not a de Polignac number, because 134309573 - 2¹² = 134305477 is a prime.

It is a super-2 number, since 2×134309573² = 36078122798884658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134309533) 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, 37253 + ... + 40698.

It is an arithmetic number, because the mean of its divisors is an integer number (33597312).

Almost surely, 2^134309573 is an apocalyptic number.

It is an amenable number.

134309573 is a deficient number, since it is larger than the sum of its proper divisors (79675).

134309573 is an equidigital number, since it uses as much as digits as its factorization.

134309573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79674.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 134309573 is about 11589.2007058295. The cubic root of 134309573 is about 512.1167603279.

The spelling of 134309573 in words is "one hundred thirty-four million, three hundred nine thousand, five hundred seventy-three".