1261411 has 2 divisors, whose sum is σ = 1261412. Its totient is φ = 1261410.

The previous prime is 1261387. The next prime is 1261427. The reversal of 1261411 is 1141621.

It is an a-pointer prime, because the next prime (1261427) can be obtained adding 1261411 to its sum of digits (16).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1261411 - 2⁹ = 1260899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1262411) 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, 630705 + 630706.

It is an arithmetic number, because the mean of its divisors is an integer number (630706).

2^1261411 is an apocalyptic number.

1261411 is a deficient number, since it is larger than the sum of its proper divisors (1).

1261411 is an equidigital number, since it uses as much as digits as its factorization.

1261411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 48, while the sum is 16.

The square root of 1261411 is about 1123.1255495269. The cubic root of 1261411 is about 108.0485321430.

The spelling of 1261411 in words is "one million, two hundred sixty-one thousand, four hundred eleven".