134145511 has 4 divisors (see below), whose sum is σ = 134292400. Its totient is φ = 133998624.

The previous prime is 134145493. The next prime is 134145523. The reversal of 134145511 is 115541431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 115541431 = 53 ⋅2180027.

It is a cyclic number.

It is not a de Polignac number, because 134145511 - 2²³ = 125756903 is a prime.

It is a super-2 number, since 2×134145511² = 35990036242902242, 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 (134145551) 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, 72066 + ... + 73903.

It is an arithmetic number, because the mean of its divisors is an integer number (33573100).

Almost surely, 2^134145511 is an apocalyptic number.

134145511 is a deficient number, since it is larger than the sum of its proper divisors (146889).

134145511 is an equidigital number, since it uses as much as digits as its factorization.

134145511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146888.

The product of its digits is 1200, while the sum is 25.

The square root of 134145511 is about 11582.1203153827. The cubic root of 134145511 is about 511.9081548612.

Adding to 134145511 its reverse (115541431), we get a palindrome (249686942).

The spelling of 134145511 in words is "one hundred thirty-four million, one hundred forty-five thousand, five hundred eleven".