1265624 has 16 divisors (see below), whose sum is σ = 2385720. Its totient is φ = 629440.

The previous prime is 1265623. The next prime is 1265639. The reversal of 1265624 is 4265621.

It is a Cunningham number, because it is equal to 1125²-1.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 1265593 and 1265602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1265623) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967 + ... + 2529.

2^1265624 is an apocalyptic number.

It is an amenable number.

1265624 is a deficient number, since it is larger than the sum of its proper divisors (1120096).

1265624 is a wasteful number, since it uses less digits than its factorization.

1265624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 846 counting only the distinct ones).

The product of its digits is 2880, while the sum is 26.

The square root of 1265624 is about 1124.9995555555. Note that the first 3 decimals coincide. The cubic root of 1265624 is about 108.1686892842.

The spelling of 1265624 in words is "one million, two hundred sixty-five thousand, six hundred twenty-four".