1205969 has 2 divisors, whose sum is σ = 1205970. Its totient is φ = 1205968.

The previous prime is 1205951. The next prime is 1205977. The reversal of 1205969 is 9695021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 82369 = 1060^2 + 287^2 .

It is a cyclic number.

It is not a de Polignac number, because 1205969 - 2⁸ = 1205713 is a prime.

It is a super-2 number, since 2×1205969² = 2908722457922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1205999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 602984 + 602985.

It is an arithmetic number, because the mean of its divisors is an integer number (602985).

2^1205969 is an apocalyptic number.

It is an amenable number.

1205969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1205969 is an equidigital number, since it uses as much as digits as its factorization.

1205969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 1205969 is about 1098.1661987149. The cubic root of 1205969 is about 106.4417602767.

The spelling of 1205969 in words is "one million, two hundred five thousand, nine hundred sixty-nine".