134811031 has 4 divisors (see below), whose sum is σ = 134854200. Its totient is φ = 134767864.

The previous prime is 134811013. The next prime is 134811041. The reversal of 134811031 is 130118431.

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

It is a cyclic number.

It is not a de Polignac number, because 134811031 - 2⁵ = 134810999 is a prime.

It is a super-2 number, since 2×134811031² = 36348028158565922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134810993 and 134811011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134811041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16501 + ... + 23278.

It is an arithmetic number, because the mean of its divisors is an integer number (33713550).

Almost surely, 2^134811031 is an apocalyptic number.

134811031 is a deficient number, since it is larger than the sum of its proper divisors (43169).

134811031 is an equidigital number, since it uses as much as digits as its factorization.

134811031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43168.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 134811031 is about 11610.8152599204. The cubic root of 134811031 is about 512.7533148679.

Adding to 134811031 its reverse (130118431), we get a palindrome (264929462).

The spelling of 134811031 in words is "one hundred thirty-four million, eight hundred eleven thousand, thirty-one".