1346746421 has 2 divisors, whose sum is σ = 1346746422. Its totient is φ = 1346746420.

The previous prime is 1346746381. The next prime is 1346746433. The reversal of 1346746421 is 1246476431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 817102225 + 529644196 = 28585^2 + 23014^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346746421 - 2¹⁴ = 1346730037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1346746451) 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, 673373210 + 673373211.

It is an arithmetic number, because the mean of its divisors is an integer number (673373211).

Almost surely, 2^1346746421 is an apocalyptic number.

It is an amenable number.

1346746421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346746421 is an equidigital number, since it uses as much as digits as its factorization.

1346746421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The square root of 1346746421 is about 36698.0438307003. The cubic root of 1346746421 is about 1104.3208622106.

The spelling of 1346746421 in words is "one billion, three hundred forty-six million, seven hundred forty-six thousand, four hundred twenty-one".