1380199 has 2 divisors, whose sum is σ = 1380200. Its totient is φ = 1380198.

The previous prime is 1380163. The next prime is 1380221. The reversal of 1380199 is 9910831.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1380199 - 2¹¹ = 1378151 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1380199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1380149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690099 + 690100.

It is an arithmetic number, because the mean of its divisors is an integer number (690100).

2^1380199 is an apocalyptic number.

1380199 is a deficient number, since it is larger than the sum of its proper divisors (1).

1380199 is an equidigital number, since it uses as much as digits as its factorization.

1380199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 1380199 is about 1174.8187094186. The cubic root of 1380199 is about 111.3389794388.

The spelling of 1380199 in words is "one million, three hundred eighty thousand, one hundred ninety-nine".