1380699293 has 2 divisors, whose sum is σ = 1380699294. Its totient is φ = 1380699292.

The previous prime is 1380699283. The next prime is 1380699329. The reversal of 1380699293 is 3929960831.

Together with next prime (1380699329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1380642649 + 56644 = 37157^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 1380699293 - 2²⁰ = 1379650717 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380699233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690349646 + 690349647.

It is an arithmetic number, because the mean of its divisors is an integer number (690349647).

Almost surely, 2^1380699293 is an apocalyptic number.

It is an amenable number.

1380699293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380699293 is an equidigital number, since it uses as much as digits as its factorization.

1380699293 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 629856, while the sum is 50.

The square root of 1380699293 is about 37157.7622173349. The cubic root of 1380699293 is about 1113.5243049025.

The spelling of 1380699293 in words is "one billion, three hundred eighty million, six hundred ninety-nine thousand, two hundred ninety-three".