134887471 has 2 divisors, whose sum is σ = 134887472. Its totient is φ = 134887470.

The previous prime is 134887463. The next prime is 134887477. The reversal of 134887471 is 174788431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134887471 - 2³ = 134887463 is a prime.

It is a super-3 number, since 3×134887471³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134887477) 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, 67443735 + 67443736.

It is an arithmetic number, because the mean of its divisors is an integer number (67443736).

Almost surely, 2^134887471 is an apocalyptic number.

134887471 is a deficient number, since it is larger than the sum of its proper divisors (1).

134887471 is an equidigital number, since it uses as much as digits as its factorization.

134887471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 150528, while the sum is 43.

The square root of 134887471 is about 11614.1065519479. The cubic root of 134887471 is about 512.8502096531.

The spelling of 134887471 in words is "one hundred thirty-four million, eight hundred eighty-seven thousand, four hundred seventy-one".