1361599 has 2 divisors, whose sum is σ = 1361600. Its totient is φ = 1361598.

The previous prime is 1361593. The next prime is 1361603. The reversal of 1361599 is 9951631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1361599 - 2⁷ = 1361471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361593) 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, 680799 + 680800.

It is an arithmetic number, because the mean of its divisors is an integer number (680800).

2^1361599 is an apocalyptic number.

1361599 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361599 is an equidigital number, since it uses as much as digits as its factorization.

1361599 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7290, while the sum is 34.

The square root of 1361599 is about 1166.8757431706. The cubic root of 1361599 is about 110.8365692738.

The spelling of 1361599 in words is "one million, three hundred sixty-one thousand, five hundred ninety-nine".