1265519 has 2 divisors, whose sum is σ = 1265520. Its totient is φ = 1265518.

The previous prime is 1265503. The next prime is 1265521. The reversal of 1265519 is 9155621.

It is a strong prime.

It is an emirp because it is prime and its reverse (9155621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1265519 - 2⁴ = 1265503 is a prime.

It is a super-2 number, since 2×1265519² = 3203076678722, which contains 22 as substring.

Together with 1265521, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1265491 and 1265500.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1265549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632759 + 632760.

It is an arithmetic number, because the mean of its divisors is an integer number (632760).

2^1265519 is an apocalyptic number.

1265519 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265519 is an equidigital number, since it uses as much as digits as its factorization.

1265519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2700, while the sum is 29.

The square root of 1265519 is about 1124.9528879024. The cubic root of 1265519 is about 108.1656978674.

The spelling of 1265519 in words is "one million, two hundred sixty-five thousand, five hundred nineteen".