134878031 has 2 divisors, whose sum is σ = 134878032. Its totient is φ = 134878030.

The previous prime is 134878027. The next prime is 134878091. The reversal of 134878031 is 130878431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 134878031 - 2² = 134878027 is a prime.

It is a super-2 number, since 2×134878031² = 36384166492873922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 134877982 and 134878000.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134878001) 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 as a sum of consecutive naturals, namely, 67439015 + 67439016.

It is an arithmetic number, because the mean of its divisors is an integer number (67439016).

Almost surely, 2^134878031 is an apocalyptic number.

134878031 is a deficient number, since it is larger than the sum of its proper divisors (1).

134878031 is an equidigital number, since it uses as much as digits as its factorization.

134878031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 134878031 is about 11613.7001425041. The cubic root of 134878031 is about 512.8382455597.

The spelling of 134878031 in words is "one hundred thirty-four million, eight hundred seventy-eight thousand, thirty-one".