1210625 has 20 divisors (see below), whose sum is σ = 1640100. Its totient is φ = 888000.

The previous prime is 1210613. The next prime is 1210631. The reversal of 1210625 is 5260121.

It can be written as a sum of positive squares in 10 ways, for example, as 1201216 + 9409 = 1096^2 + 97^2 .

It is not a de Polignac number, because 1210625 - 2⁴ = 1210609 is a prime.

It is a super-2 number, since 2×1210625² = 2931225781250, which contains 22 as substring.

It is a plaindrome in base 9.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8051 + ... + 8199.

It is an arithmetic number, because the mean of its divisors is an integer number (82005).

2^1210625 is an apocalyptic number.

It is an amenable number.

1210625 is a deficient number, since it is larger than the sum of its proper divisors (429475).

1210625 is an equidigital number, since it uses as much as digits as its factorization.

1210625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1210625 is about 1100.2840542333. The cubic root of 1210625 is about 106.5785676646.

Adding to 1210625 its reverse (5260121), we get a palindrome (6470746).

The spelling of 1210625 in words is "one million, two hundred ten thousand, six hundred twenty-five".