1201625 has 8 divisors (see below), whose sum is σ = 1499784. Its totient is φ = 961200.

The previous prime is 1201601. The next prime is 1201633. The reversal of 1201625 is 5261021.

It can be written as a sum of positive squares in 4 ways, for example, as 26569 + 1175056 = 163^2 + 1084^2 .

It is not a de Polignac number, because 1201625 - 2¹⁴ = 1185241 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 4682 + ... + 4931.

It is an arithmetic number, because the mean of its divisors is an integer number (187473).

2^1201625 is an apocalyptic number.

It is an amenable number.

1201625 is a deficient number, since it is larger than the sum of its proper divisors (298159).

1201625 is an frugal number, since it uses more digits than its factorization.

1201625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9628 (or 9618 counting only the distinct ones).

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

The square root of 1201625 is about 1096.1865717112. The cubic root of 1201625 is about 106.3138025097.

Adding to 1201625 its reverse (5261021), we get a palindrome (6462646).

It can be divided in two parts, 120 and 1625, that multiplied together give a triangular number (195000 = T₆₂₄).

The spelling of 1201625 in words is "one million, two hundred one thousand, six hundred twenty-five".