1346521129 has 2 divisors, whose sum is σ = 1346521130. Its totient is φ = 1346521128.

The previous prime is 1346521123. The next prime is 1346521147. The reversal of 1346521129 is 9211256431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1194048025 + 152473104 = 34555^2 + 12348^2 .

It is a cyclic number.

It is not a de Polignac number, because 1346521129 - 2¹⁵ = 1346488361 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1346521094 and 1346521103.

It is not a weakly prime, because it can be changed into another prime (1346521123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 673260564 + 673260565.

It is an arithmetic number, because the mean of its divisors is an integer number (673260565).

Almost surely, 2^1346521129 is an apocalyptic number.

It is an amenable number.

1346521129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1346521129 is an equidigital number, since it uses as much as digits as its factorization.

1346521129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 34.

The square root of 1346521129 is about 36694.9741654085. The cubic root of 1346521129 is about 1104.2592795878.

The spelling of 1346521129 in words is "one billion, three hundred forty-six million, five hundred twenty-one thousand, one hundred twenty-nine".