1265923 has 2 divisors, whose sum is σ = 1265924. Its totient is φ = 1265922.

The previous prime is 1265921. The next prime is 1265941. The reversal of 1265923 is 3295621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1265923 - 2¹ = 1265921 is a prime.

It is a super-2 number, since 2×1265923² = 3205122083858, which contains 22 as substring.

Together with 1265921, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1265891 and 1265900.

It is not a weakly prime, because it can be changed into another prime (1265921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632961 + 632962.

It is an arithmetic number, because the mean of its divisors is an integer number (632962).

2^1265923 is an apocalyptic number.

1265923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1265923 is an equidigital number, since it uses as much as digits as its factorization.

1265923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 1265923 is about 1125.1324366491. The cubic root of 1265923 is about 108.1772067932.

The spelling of 1265923 in words is "one million, two hundred sixty-five thousand, nine hundred twenty-three".