1378960229 has 2 divisors, whose sum is σ = 1378960230. Its totient is φ = 1378960228.

The previous prime is 1378960223. The next prime is 1378960241. The reversal of 1378960229 is 9220698731.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 907636129 + 471324100 = 30127^2 + 21710^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1378960229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1378960223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 689480114 + 689480115.

It is an arithmetic number, because the mean of its divisors is an integer number (689480115).

Almost surely, 2^1378960229 is an apocalyptic number.

It is an amenable number.

1378960229 is a deficient number, since it is larger than the sum of its proper divisors (1).

1378960229 is an equidigital number, since it uses as much as digits as its factorization.

1378960229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 1378960229 is about 37134.3537576730. The cubic root of 1378960229 is about 1113.0565941687.

The spelling of 1378960229 in words is "one billion, three hundred seventy-eight million, nine hundred sixty thousand, two hundred twenty-nine".