134869481 has 2 divisors, whose sum is σ = 134869482. Its totient is φ = 134869480.

The previous prime is 134869463. The next prime is 134869489. The reversal of 134869481 is 184968431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 83101456 + 51768025 = 9116^2 + 7195^2 .

It is a cyclic number.

It is not a de Polignac number, because 134869481 - 2¹⁴ = 134853097 is a prime.

It is a super-2 number, since 2×134869481² = 36379553810418722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (134869489) 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 as a sum of consecutive naturals, namely, 67434740 + 67434741.

It is an arithmetic number, because the mean of its divisors is an integer number (67434741).

Almost surely, 2^134869481 is an apocalyptic number.

It is an amenable number.

134869481 is a deficient number, since it is larger than the sum of its proper divisors (1).

134869481 is an equidigital number, since it uses as much as digits as its factorization.

134869481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 44.

The square root of 134869481 is about 11613.3320369307. The cubic root of 134869481 is about 512.8274089551.

The spelling of 134869481 in words is "one hundred thirty-four million, eight hundred sixty-nine thousand, four hundred eighty-one".