134451431 has 2 divisors, whose sum is σ = 134451432. Its totient is φ = 134451430.

The previous prime is 134451403. The next prime is 134451437. The reversal of 134451431 is 134154431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 134451431 - 2⁶ = 134451367 is a prime.

It is a super-2 number, since 2×134451431² = 36154374595895522, 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 134451431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134451437) 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, 67225715 + 67225716.

It is an arithmetic number, because the mean of its divisors is an integer number (67225716).

Almost surely, 2^134451431 is an apocalyptic number.

134451431 is a deficient number, since it is larger than the sum of its proper divisors (1).

134451431 is an equidigital number, since it uses as much as digits as its factorization.

134451431 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 134451431 is about 11595.3193573959. The cubic root of 134451431 is about 512.2969964193.

The spelling of 134451431 in words is "one hundred thirty-four million, four hundred fifty-one thousand, four hundred thirty-one".