134131345 has 4 divisors (see below), whose sum is σ = 160957620. Its totient is φ = 107305072.

The previous prime is 134131321. The next prime is 134131363. The reversal of 134131345 is 543131431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 543131431 = 137 ⋅3964463.

It can be written as a sum of positive squares in 2 ways, for example, as 26635921 + 107495424 = 5161^2 + 10368^2 .

It is a cyclic number.

It is not a de Polignac number, because 134131345 - 2¹¹ = 134129297 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13413130 + ... + 13413139.

It is an arithmetic number, because the mean of its divisors is an integer number (40239405).

Almost surely, 2^134131345 is an apocalyptic number.

It is an amenable number.

134131345 is a deficient number, since it is larger than the sum of its proper divisors (26826275).

134131345 is an equidigital number, since it uses as much as digits as its factorization.

134131345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26826274.

The product of its digits is 2160, while the sum is 25.

The square root of 134131345 is about 11581.5087531806. The cubic root of 134131345 is about 511.8901347621.

Adding to 134131345 its reverse (543131431), we get a palindrome (677262776).

The spelling of 134131345 in words is "one hundred thirty-four million, one hundred thirty-one thousand, three hundred forty-five".