134133430421 has 2 divisors, whose sum is σ = 134133430422. Its totient is φ = 134133430420.

The previous prime is 134133430411. The next prime is 134133430471. The reversal of 134133430421 is 124034331431.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119754063025 + 14379367396 = 346055^2 + 119914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134133430421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134133430411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67066715210 + 67066715211.

It is an arithmetic number, because the mean of its divisors is an integer number (67066715211).

Almost surely, 2^134133430421 is an apocalyptic number.

It is an amenable number.

134133430421 is a deficient number, since it is larger than the sum of its proper divisors (1).

134133430421 is an equidigital number, since it uses as much as digits as its factorization.

134133430421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 134133430421 its reverse (124034331431), we get a palindrome (258167761852).

The spelling of 134133430421 in words is "one hundred thirty-four billion, one hundred thirty-three million, four hundred thirty thousand, four hundred twenty-one".