1350878129 has 2 divisors, whose sum is σ = 1350878130. Its totient is φ = 1350878128.

The previous prime is 1350878119. The next prime is 1350878149. The reversal of 1350878129 is 9218780531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1258333729 + 92544400 = 35473^2 + 9620^2 .

It is a cyclic number.

It is not a de Polignac number, because 1350878129 - 2⁸ = 1350877873 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1350878129.

It is not a weakly prime, because it can be changed into another prime (1350878119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675439064 + 675439065.

It is an arithmetic number, because the mean of its divisors is an integer number (675439065).

Almost surely, 2^1350878129 is an apocalyptic number.

It is an amenable number.

1350878129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1350878129 is an equidigital number, since it uses as much as digits as its factorization.

1350878129 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 44.

The square root of 1350878129 is about 36754.2940212433. The cubic root of 1350878129 is about 1105.4490313490.

The spelling of 1350878129 in words is "one billion, three hundred fifty million, eight hundred seventy-eight thousand, one hundred twenty-nine".