1346801389 has 2 divisors, whose sum is σ = 1346801390. Its totient is φ = 1346801388.

The previous prime is 1346801359. The next prime is 1346801411. The reversal of 1346801389 is 9831086431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1152059364 + 194742025 = 33942^2 + 13955^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346801389 - 2²³ = 1338412781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1346801329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673400694 + 673400695.

It is an arithmetic number, because the mean of its divisors is an integer number (673400695).

Almost surely, 2^1346801389 is an apocalyptic number.

It is an amenable number.

1346801389 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346801389 is an equidigital number, since it uses as much as digits as its factorization.

1346801389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 1346801389 is about 36698.7927458111. The cubic root of 1346801389 is about 1104.3358864404.

The spelling of 1346801389 in words is "one billion, three hundred forty-six million, eight hundred one thousand, three hundred eighty-nine".