134181431 has 2 divisors, whose sum is σ = 134181432. Its totient is φ = 134181430.

The previous prime is 134181407. The next prime is 134181449.

134181431 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is not a de Polignac number, because 134181431 - 2²⁶ = 67072567 is a prime.

It is a super-2 number, since 2×134181431² = 36009312850415522, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134181431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134181451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67090715 + 67090716.

It is an arithmetic number, because the mean of its divisors is an integer number (67090716).

Almost surely, 2^134181431 is an apocalyptic number.

134181431 is a deficient number, since it is larger than the sum of its proper divisors (1).

134181431 is an equidigital number, since it uses as much as digits as its factorization.

134181431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1152, while the sum is 26.

The square root of 134181431 is about 11583.6708775759. The cubic root of 134181431 is about 511.9538418166.

The spelling of 134181431 in words is "one hundred thirty-four million, one hundred eighty-one thousand, four hundred thirty-one".