134445511 has 4 divisors (see below), whose sum is σ = 140290992. Its totient is φ = 128600032.

The previous prime is 134445499. The next prime is 134445523. The reversal of 134445511 is 115544431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115544431 = 61 ⋅1894171.

It is an interprime number because it is at equal distance from previous prime (134445499) and next prime (134445523).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134445511 is a prime.

It is a super-2 number, since 2×134445511² = 36151190856102242, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134445511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134445581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2922706 + ... + 2922751.

It is an arithmetic number, because the mean of its divisors is an integer number (35072748).

Almost surely, 2^134445511 is an apocalyptic number.

134445511 is a deficient number, since it is larger than the sum of its proper divisors (5845481).

134445511 is an equidigital number, since it uses as much as digits as its factorization.

134445511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5845480.

The product of its digits is 4800, while the sum is 28.

The square root of 134445511 is about 11595.0640791675. The cubic root of 134445511 is about 512.2894773653.

Adding to 134445511 its reverse (115544431), we get a palindrome (249989942).

The spelling of 134445511 in words is "one hundred thirty-four million, four hundred forty-five thousand, five hundred eleven".