1245525 has 12 divisors (see below), whose sum is σ = 2059392. Its totient is φ = 664240.

The previous prime is 1245509. The next prime is 1245527. The reversal of 1245525 is 5255421.

It is a happy number.

It is not a de Polignac number, because 1245525 - 2⁴ = 1245509 is a prime.

1245525 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1245495 and 1245504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8229 + ... + 8378.

It is an arithmetic number, because the mean of its divisors is an integer number (171616).

2^1245525 is an apocalyptic number.

1245525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1245525 is a deficient number, since it is larger than the sum of its proper divisors (813867).

1245525 is a wasteful number, since it uses less digits than its factorization.

1245525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16620 (or 16615 counting only the distinct ones).

The product of its digits is 2000, while the sum is 24.

The square root of 1245525 is about 1116.0309135503. The cubic root of 1245525 is about 107.5930328587.

It can be divided in two parts, 1245 and 525, that added together give a triangular number (1770 = T₅₉).

The spelling of 1245525 in words is "one million, two hundred forty-five thousand, five hundred twenty-five".