1266259 has 2 divisors, whose sum is σ = 1266260. Its totient is φ = 1266258.

The previous prime is 1266247. The next prime is 1266263. The reversal of 1266259 is 9526621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1266259 - 2¹⁷ = 1135187 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 2¹⁷ + 6² + 6⁴ + 2¹⁹ + 5⁷ + 9⁶ .

It is a self number, because there is not a number n which added to its sum of digits gives 1266259.

It is not a weakly prime, because it can be changed into another prime (1266229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633129 + 633130.

It is an arithmetic number, because the mean of its divisors is an integer number (633130).

2^1266259 is an apocalyptic number.

1266259 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266259 is an equidigital number, since it uses as much as digits as its factorization.

1266259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 31.

The square root of 1266259 is about 1125.2817424983. The cubic root of 1266259 is about 108.1867767081.

It can be divided in two parts, 12662 and 59, that added together give a palindrome (12721).

The spelling of 1266259 in words is "one million, two hundred sixty-six thousand, two hundred fifty-nine".