1372731329 has 2 divisors, whose sum is σ = 1372731330. Its totient is φ = 1372731328.

The previous prime is 1372731313. The next prime is 1372731341. The reversal of 1372731329 is 9231372731.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1193840704 + 178890625 = 34552^2 + 13375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1372731329 - 2⁴ = 1372731313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1372731292 and 1372731301.

It is not a weakly prime, because it can be changed into another prime (1372731359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 686365664 + 686365665.

It is an arithmetic number, because the mean of its divisors is an integer number (686365665).

Almost surely, 2^1372731329 is an apocalyptic number.

It is an amenable number.

1372731329 is a deficient number, since it is larger than the sum of its proper divisors (1).

1372731329 is an equidigital number, since it uses as much as digits as its factorization.

1372731329 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47628, while the sum is 38.

The square root of 1372731329 is about 37050.3890532880. The cubic root of 1372731329 is about 1111.3781353938.

The spelling of 1372731329 in words is "one billion, three hundred seventy-two million, seven hundred thirty-one thousand, three hundred twenty-nine".