1210525 has 12 divisors (see below), whose sum is σ = 1538964. Its totient is φ = 944000.

The previous prime is 1210523. The next prime is 1210541. The reversal of 1210525 is 5250121.

It can be written as a sum of positive squares in 6 ways, for example, as 37636 + 1172889 = 194^2 + 1083^2 .

It is not a de Polignac number, because 1210525 - 2¹ = 1210523 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a plaindrome in base 9 and base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1210499 and 1210508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210523) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 435 + ... + 1615.

It is an arithmetic number, because the mean of its divisors is an integer number (128247).

2^1210525 is an apocalyptic number.

It is an amenable number.

1210525 is a deficient number, since it is larger than the sum of its proper divisors (328439).

1210525 is a wasteful number, since it uses less digits than its factorization.

1210525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1232 (or 1227 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 1210525 is about 1100.2386104841. The cubic root of 1210525 is about 106.5756330508.

Adding to 1210525 its reverse (5250121), we get a palindrome (6460646).

The spelling of 1210525 in words is "one million, two hundred ten thousand, five hundred twenty-five".