1380737329 has 2 divisors, whose sum is σ = 1380737330. Its totient is φ = 1380737328.

The previous prime is 1380737243. The next prime is 1380737341. The reversal of 1380737329 is 9237370831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 757735729 + 623001600 = 27527^2 + 24960^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380737329 - 2⁹ = 1380736817 is a prime.

It is not a weakly prime, because it can be changed into another prime (1380737389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690368664 + 690368665.

It is an arithmetic number, because the mean of its divisors is an integer number (690368665).

Almost surely, 2^1380737329 is an apocalyptic number.

It is an amenable number.

1380737329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380737329 is an equidigital number, since it uses as much as digits as its factorization.

1380737329 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 190512, while the sum is 43.

The square root of 1380737329 is about 37158.2740314994. The cubic root of 1380737329 is about 1113.5345300644.

The spelling of 1380737329 in words is "one billion, three hundred eighty million, seven hundred thirty-seven thousand, three hundred twenty-nine".