1263525 has 24 divisors (see below), whose sum is σ = 2214144. Its totient is φ = 633600.

The previous prime is 1263511. The next prime is 1263539. The reversal of 1263525 is 5253621.

It is an interprime number because it is at equal distance from previous prime (1263511) and next prime (1263539).

It is not a de Polignac number, because 1263525 - 2⁶ = 1263461 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1263495 and 1263504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 780 + ... + 1770.

It is an arithmetic number, because the mean of its divisors is an integer number (92256).

2^1263525 is an apocalyptic number.

1263525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1263525 is a deficient number, since it is larger than the sum of its proper divisors (950619).

1263525 is a wasteful number, since it uses less digits than its factorization.

1263525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021 (or 1016 counting only the distinct ones).

The product of its digits is 1800, while the sum is 24.

The square root of 1263525 is about 1124.0662791846. The cubic root of 1263525 is about 108.1088580044.

The spelling of 1263525 in words is "one million, two hundred sixty-three thousand, five hundred twenty-five".