134573905 has 4 divisors (see below), whose sum is σ = 161488692. Its totient is φ = 107659120.

The previous prime is 134573863. The next prime is 134573909. The reversal of 134573905 is 509375431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 64834704 + 69739201 = 8052^2 + 8351^2 .

It is not a de Polignac number, because 134573905 - 2⁹ = 134573393 is a prime.

It is a super-2 number, since 2×134573905² = 36220271813898050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134573909) 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, 13457386 + ... + 13457395.

It is an arithmetic number, because the mean of its divisors is an integer number (40372173).

Almost surely, 2^134573905 is an apocalyptic number.

It is an amenable number.

134573905 is a deficient number, since it is larger than the sum of its proper divisors (26914787).

134573905 is an equidigital number, since it uses as much as digits as its factorization.

134573905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26914786.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 134573905 is about 11600.5993379653. The cubic root of 134573905 is about 512.4525024393.

The spelling of 134573905 in words is "one hundred thirty-four million, five hundred seventy-three thousand, nine hundred five".