134860421 has 2 divisors, whose sum is σ = 134860422. Its totient is φ = 134860420.

The previous prime is 134860417. The next prime is 134860433. The reversal of 134860421 is 124068431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125776225 + 9084196 = 11215^2 + 3014^2 .

It is a cyclic number.

It is not a de Polignac number, because 134860421 - 2² = 134860417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (134860321) 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, 67430210 + 67430211.

It is an arithmetic number, because the mean of its divisors is an integer number (67430211).

Almost surely, 2^134860421 is an apocalyptic number.

It is an amenable number.

134860421 is a deficient number, since it is larger than the sum of its proper divisors (1).

134860421 is an equidigital number, since it uses as much as digits as its factorization.

134860421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 134860421 is about 11612.9419614497. The cubic root of 134860421 is about 512.8159254568.

The spelling of 134860421 in words is "one hundred thirty-four million, eight hundred sixty thousand, four hundred twenty-one".